Belted cases have a accuracy track record that's not all that great, at least in competition where thousands of rounds have been fired by the best marksmen. It reaches 3,250 fps with a 180-grain bullet and a 26-inch barrel. The bottom line is that Wby has a guarantee on accuracy which tells you what you need to know. Hornady .300 PRC (left) and .300 RUM.300 Remington Ultra Mag vs. Hornady .300 PRC. Long live the 300 RUM.With out muzzel brake recoil is a nightmear!!! The ballistic performances based offfive grain types for velocity are 3,456 ft/s (150 gr), 3,326 ft/s (168 gr), 3,… Mag., leaving the all-American 30-calibers to Winchester, Weatherby, H&H, Norma and even Dakota. As a rule of thumb, when it comes to hunting, muzzle energy is what many hunters … However, it’s a bit too much of a good thing. I should probably shoot the Ultramag at longer ranges but if it can't shoot 1-1/2" at 100 yards its not gonna do it at 300 yds. I'm smart enough to know that 1 observation doesn't mean its an average. Main thing to me was recoil. This is the Ammoguide drawing. Mag. Great knockdown power! The 300 Wby will outshoot the Untramag any day of the week. I load for one of the 300 WM's and it shoots the 180g b-tip into 1/2"-3/4" at 3150fps. I'm 18, 6'2 and 140 lbs. Bullet Cost - Why is this so much a wild hair? I opted to go for the laminated version to help soak up the recoil of the 300 RUM. You are using an out of date browser. I have a Remington LSS .300 RUM and it will outshoot your weatherby as you described. I have seen a lot of guns with a 2" difference between a cold barrel shot and the next 2 bullets. 300 SAUM and its felt recoil is considerably less than that of the 300 win mag or 300 weatherby mag, and is matches closely to the trajectory of the 300 win mag. We all go out to shoot at a range north of Byers Colorado which goes all the way out to 1000 yards. I also own a .222 Rem in an older 700 ADL. Had my choice when I ordered a custom rifle a few years back and debated for a long time the choice. Remington launched this beast in 1999, it's first 30-caliber. Weth...Hell on deer! There aren't any Ultramag guarantees like that. The most I was use to was my .300 Win Mag. For a better experience, please enable JavaScript in your browser before proceeding. If the Ultra mag was a great round we'd see it in use at the 1000 yard meets. Many reloaders believe the double radius also minimizes brass flow and case stretch, resulting in longer case life. There may be better rounds for the UM coming out that will tighten up the race, But right now the Wby is years ahead of the UM. The case isbased off a .404 Jeffery Nitro Express by narrowing down the neck to fit a .308 (7.8mm) bullet. From what I’ve read seems like a lot of you out there have 300 Win Mags. First Prev 2 of 3 Go to page. The 300 wby is based on the full length 300 H&H case which requires a longer action. 300 Ultra Mag vs 300 Win Mag The.300 Ultra Mag can fire the same weight bullet approximately 200-300fps faster than the.300 Win Mag. 1 of 3 Go to page. Classic in 300Wth. I did my research on the 300 RUM before I went out and bought one. Virtually all Weatherby cases are in the 45 degree range. The last I looked the only shells you could get were Remington brand (a 150, and 2x 180s Core Lokt and now a Boat tail (match). As far as accuracy goes for all these cartridges, I'd pick a rimless version. Kid, I've seen three different 700BDL's shoot under 3/4MOA at 300 yards with factory 180gr Partitions. Roy Weatherby began experimenting with the full-length Holland & Holland case in the 1940s, and he actually had a 6.5mm cartridge, but it would be 2016 until any Weatherby … you have a bad set of drawings. Find 300 Weatherby Mag Ammo for sale, in-stock and ready to ship at Ammo Freedom. Mag. Mag., 7mm Rem. AA is the only one that calls out the angle in any of the Weatherby prints, and they don't do it with the .300. Brass has a higher specific gravity or is denser than water. The .30/06 vs. the .300 Winchester Magnum. One problenm with the Remington UM is a lack of bullet choice. The Wby has to have the extra headspace because of the high pressures generated. Mag., 8mm Rem. Go. I'm currently looking at either the Remington 700 SPS, .300 Ultra Mag; or the Weatherby Vanguard, .300 Weatherby Magnum. But the .300 is close enough to the 7mm to be considered similar. and 13% more capacity than the.300 Weatherby Mag. The 9 lug Wby bolt is the strongest in the industry. The UM bullets are harder to find than the Wby to date. With this kind of performance from all the Remingtons I've seen and shot, I dont see any reason why to spend all that extra money on a Weatherby. If yer working off a budget, start doing some research on costs including the rifles themselves as well as cost to reload. Both are handloaded by me. 300 Ultra Mag or 300 Win Mag. That was about my upper limit. However, the Wby rifles are of higher quality than the Remingtons. Its not pretty. So based on my experience, with the right powder a WSM can push the heavier bullets quite well. However, the 7mm wby mag is not a necked down 300 wby mag. I bought the gun used from an older guy who gave up varminting. JavaScript is disabled. It has to be because of the high pressures generated by the ammunition. I have done it in person at the range. When doing load work for my … Bottom line is finding a good load that will shoot. Good luck. Only thing I did was clean the barrel real good and give it a trigger job down to 2lbs and thats that. However, .300 Weatherby shooters wonder what took Remington so long to catch up as the RUM duplicates the California hot-rod which appeared 45 years earlier. Discussion Starter • #1 • Sep 26, 2009. Thanks for … 1; 2; 3; Next. JavaScript is disabled. Say hello to the 300 Remington Ultra Magnum. and 416 Rem. Beyond 300 they start to shine but there are 7 mm's with their higher BC bullets that will out perform either. We all go out to shoot at a range north of Byers Colorado which goes all the way out to 1000 yards. I have 5 boxes of Nosler 300 RUM brass that I'm pretty impressed with. .300 Weatherby ammunition is prohibitively expensive and .300 ultra mag ammunition is not widely available. Based on the 300 H&H Magnum, the 300 Weatherby delivers 300 more fps than its British cousin. Historically, Weatherby claimed that this is the most powerful .30 caliber magnum rifle commercially available, but the recently introduced .300 RUM and Weatherby’s own .30-378 Weatherby Magnum are now more powerful. This results in a flatter trajectory, more resistance to wind drift, and more retained energy at longer range. Plus, it kicks like a demoniac mule, and … Yes the cost of the rifle and shells is high but worth it if you want the best in performance. The 6.5-300 Weatherby Magnum is a beast; it is the .300 Weatherby Magnum—requiring a magnum-length action—necked down to hold 6.5mm bullets, replete with the double radius shoulder that Weatherby is famous for. Now the problem with the comparison was that I shoot Noslers and the UM was shooting Remington Core Lokts. I completely disagree with the .300 weatherby being better than the .300 RUM. Gun Parts - Stocks, Barrels, Actions, etc. The Weatherby and ultra mag ballistics are definitely superior to the .300 win mag, but … One could say, the .300 Weatherby was 50 years ahead of its time as it has only been recently that suitable optics and … Maybe true, but he's only wanting a 700 yard gun. I can completely outshoot the Ultramag with the Wby from a benchrest at 100 yds. Nothing shoots better in my house than these Remingtons. Next Last. Guys and Gals, take a closer look at the 7 mm Weatherby, you won’t be disappointed . Another good reason to choose the WSM is the barrel will last a lot longer than the WBY or RUM and so will the brass. May 28, 2019 #1 ART_SKYD New member. My rifle is completely stock except for trigger work down to 2 3/4 lbs. It may not display this or other websites correctly. Shoots … Prev. Remington is going to have to put better barrels on their guns to compete with Wby thus raising the cost. Both are celebrated by hunters worldwide, but which one of these classic .30-caliber cartridges will come out on top I just checked again and they have added another 150 and 2 more 180s but the Wby still has a better selection as they load Hornady, Nosler and Barnes bullets. .300 Remington Ultra Mag The.300 Remington Ultra Mag is loosely based on a blown out and necked down.404 Jeffery case with a 30 degree shoulder. However, the.300 Ultra Mag also has a lot more recoil than the.300 Win Mag. For a better experience, please enable JavaScript in your browser before proceeding. Modernists scoff at the double radius shoulder, but it feeds more smoothly than today's fat, angular magnums. It does have a slightly longer neck by about .023, but the WSM's sharper shoulder and sharper neck/shoulder junction (vs the radius WBY junction) I would think more than make up for the length difference. … vs. 300 Ultra Mag. Maybe quality control problems ? In my opinion though, the RUM is on top of the Weatherby. Nosler partitions and easily reaches 3000 fps. Remington produced the 300 Win Mag in 1999 and this is also the first cartridge of the 30-caliber 3,153 Posts #10 • Feb 28, 2009. grits and gravy said: Get a 300 … You get what you pay for. The 2nd concern was accuracy. 300 Weatherby Mag. You must log in or register to reply here. With brake 6or 7 rnds in a half hour is about all I can take.Might sale it for right price!!! This case is … Competitive shooters have also praised its accuracy and performance, using it to … This case is used for the 257, 270, and 7mm wby mags. If you go from the centerline of the radius, you will see a neck closer to .38". The 7mm wby is based on the 270 wby (Roy Weaterby's first cartridge)which is a shortened and blown out 300 H&H magnum with weatherby's signiture double radius shoulder. Mag. This beast provides more initial velocity than any of the previous cartridges discussed, and has proven to be an outstanding elk cartridge. The more experienced western hunters I talked to the more 300WBY rose to the top. The UM needs a better bullet for a real comparison. But if they want to stop a magnum round, they will have to try harder than this. I have a Rem. The .300 Wby. As stated the RUM has the most versatility. Introduced in 1944, this is the all-around cartridge for the big game hunter. My father, Ol’ Grumpy Pants, absolutely loves this cartridge, and he has taken it around the world for all sorts of game. My best 3 shot group with the 300 Wby at 100 yards is 1/2" and is always under 1 ". Plus, it's got more panache than … Joined Jun 8, 2018 Messages 20. However, the.30-378 Weatherby Magnum is considered the most overbore production sporting cartridge available and is not considered as efficient as the.300 RUM cartridge. The head space issue has been debated forever. Might help shape yer decision. Next Last. 300 Win Mag Vs 300 Weatherby Vs 300 Ultra Mag And 300 Win Mag Vs 6 5 Creedmoor 1000 Yards BEST BUY AND CHEAP PRICES HERE. vs. 300 WSM. With handloads or genuine Weatherby ammo, it runs neck and neck with the .300 Ultra Mag, but burns less powder and produces less recoil. The Weatherby is 100 to 200 fps faster than the Win Mag depending on load and bullet selection but the newer Win Mag is certainly adequate for longer shots. With my pet loads, it has shot in the .1's at 100 yards many upon many of times. Read ballistics comparisons on the two rounds but was wondering which one you guys prefer and why? Kick is a little much for some people but I have a break on mine so its actually fun to shoot. Rated 5 out of 5. Who really needs one? It remains the most popular Weatherby cartridge and the flagship of the … The Ultra Mag is faster and also has a 26" tube. For decades Remington was satisfied with its 6.5mm Rem. the Wby doesn't suffer accuracy problems because of extra headspace. Thread starter bvolcic; Start date Oct 30, 2010; Help Support Long Range Hunting : Join the LRH Team or . Not even a muzzle brake. Who needs a Weatherby when you can have a .300 RUM? I agree that the 1-1/2" gaurantee is a joke because the Wby's can do that anyday. You may also want to consider some of the the short mags. Am I negating the reason to own a .300 Weatherby Magnum by purchasing a Vanguard, with a 24" barrel? Just food for thought. The .300 Win Mag might be inferior in performance and power to the .300 Weatherby Magnum and Remington Ultra Magnum, but it is still certainly capable of bringing down elk, moose, bear, and bighorn sheep. IME, the neck is the vertical portion. My best 3 shot group with the 300 Wby at 100 yards is 1/2" and is always under 1 ". Awesome gun in everyway. Gun Parts - Stocks, Barrels, Actions, etc. was one of Roy Weatherby’s initial cartridges, developed in 1944. As illustrated in the chart,.300 Weatherby Magnum rounds - on average - achieve a velocity of about 3230 feet per second (fps) while.300 Winchester Magnum rounds travel at a velocity of 3030 fps. 22-243AI vs 22 CHeetah vs 22 something else. Mills – September 17, 2017. Not meant to start a ****ing match here, but your knocking the RUM, I'm knocking the Weatherby. This is 4th year hunting with my ultralight, it has been spot on evertime it’s been called upon. So on to the head to head comparison. To put this into perspective, a Boeing 737 commercial airliner travels at a cruising speed of 600 mph, or 880 fps. However, I don't care for the weight of the rifles I need them in for me to handle the recoil. 22-243AI vs 22 CHeetah vs 22 something else. I puchased a Rem. ...If you bed the action , the first 2 inches after the locking lug and put a 2inch bed 2 inches down from the for end...The rifle will shoot 3/8ths at a 100, 2 shots...Factory 150gr. The .300 Weatherby became the most popular cartridge … Not with the Weatherby. Hey I have a keeper,Rem 700 sporter weight in 300 RUM.180 gr nosler gold partion in front of 97.5 H1000 gives me 3367FPS and 7/8" 5 shot 100 yds .Vias muzzel Brake,sounds like atom bomb.BBL very hot after just three rnds.But who cares!!! You are using an out of date browser. They say it's SAAMI verified. Where the .300 RUM earns its salt is with ultra-heavy for caliber bullets: 200 grains and up. I dont shoot groups at close range as it defeats my purpose of a LR gun. You say no more then 700 yards, but if a big one steps out at 800 I am willing to bet you're trigger finger is going to be itching for him. Peter Pan I love my remington,but if I had the cash I'd consider sako.Lately remington has been on a few peoples Dung list. The 300 Wby will outshoot the Untramag any day of the week. Go. It may not display this or other websites correctly. I have a 300 Wby, and a friend of mine has a 300 Ultramag while yet another friend has a 300 Win mag. Its very consistent. Thecase is a rimless bottleneck with a large rifle magnum primer. So a .300 Weatherby Magnum round exits the barrel with kinetic energy equal to the energy required for linear vertical displacement of 4070 pounds through a one foot distance, while a .338 Lapua Magnum round exiting the barrel has energy equal to the amount required to displace 4830 pounds over the same one foot distance. My .308 Norma with a 180-200 may be the … I was all ready to buy a new rifle in 300 win mag, but after reading up on the issue of the inherent accuracy flaws from a belted magnum, I'm wondering if the 300 RUM might have better (or easier) potential to be … Mag., 350 Rem. Indeed within 300 yards an '06 will generally work just as well as the two big boys. I'm looking for some opinions from guys who are already shooting these rigs, as to which one might be preferred. The 300 Weatherby Magnum had the flattest trajectory, longest range and the greatest killing power of any 300 magnum on the market until the 30-378 Weatherby Magnum came along. I think the ultra's one big problem is recoil. Joined May 21, 2008 Messages 6,194 Location South of Canada and North of Wyoming. On the other side a .300 magnum does not come close to being a … My uncle has several Rem 700's in 30-06 and 300 Win Mags. Bulk Ammunition on sale, including 300 Weatherby Mag Rifle Rounds. I would go with the 300 RUM, I personally have one and I love it. Apr 14, 2013 #15 M. MontanaRifleman Well-Known Member. It is an “improved” .300 H&H with full-length (2.825-inch) case, body taper removed to increase powder capacity, and the signature Weatherby “double-Venturi” shoulder. .300 Weatherby Magnum - AmmoGuide Interactive, Innovative Technologies - Reloading Equipment, http://www.saami.org/PubResources/CC_Drawings/Rifle/300 Weatherby Magnum.pdf. To avoid a Ford vs Chevy debate, let’s stipulate that the rifle I have selected is available in both chamberings. Its very forgiving with bullet type, and barrel temperature. I can sit down at the bench and shoot 20 rounds in an orderly fasion with no more than a sweatshirt with no problem. Compare to the Weatherby’s 2825 fps and the … The bottom line is that the UM was created to compete with the Wby and Remington did meet the velocity specs. I read a lot on accuracy about the cartridge and I could not believe the groups people were getting with such a hard kicking gun. You can purchase .300 win mag ammunition off the shelf at any sporting goods store in the lower 48 and you'll be able to find it at just about any general store in Alaska. I would also go with the Weatherby. Guys what do you think about Sendero against Sako in 300RUM? Of the mark a little, but! I can't agree with the 300 Ultra-Mag reccomendation over the 300 Wby at all. It, too, can digest a healthy amount of powder, and like most .300s it’s capable of excellent … So why does Wby do it and Remington doesn't. I have shot 3 shot groups at 800 yards of 3.5" and 4" with the 150g CT B-tip and 1.5" 3 shot group at 525 yards with the 200g Accubond. Do a search for Remington quality problems. Weatherby guarantees out of the box an 1-1/2" or better group at 100 yards or you send it back in. Barrel life is short, and being aggressively overbore, the RUM can be finicky about accuracy. I would go with the .300 win mag. Like most of his other magnum cartridges, this is based on a blown-out .300 H&H Magnum case, using the signature Weatherby double-radius shoulder. The rifle will be a JP Sauer, Weatherby, or Sako. Instead it's the WSM, Ackley and the WBY mags. The case drawing I am looking at on Ammoguide shows the WBY with a 20* shoulder. I can stand the recoil of the weatherby without a brake, but the ultra was just a bit too much. I just looked at the case drawings in the Hogdon, Speer, AA, and Hornaday manuals. With the .300 Remington Ultra Magnum being introduced in 1999. Although the case design of the Weatherby was entirely different from the .300 H&H, enabling head spacing at the shoulder, Weatherby retained the belt at the case head, resulting in a very successful marketing ploy. The best group I ever shot at 300 yards was 1 1/2". Therefore I don't hunt them. My 7 mm Weatherby Ultra Lite likes 175 gr. Fact is, any of them will work fine out to 700 yards. When doing load work for my WSM, I worked up for the 210 Berger using RL17 and max'd @ 2935 which is within 200 fps of what I could push the 210's in my 300 RUM using Retumbo. I am just as happy with a 165-180 in my '06 or a 210-225 in my .338. In an orderly fasion with no more than a sweatshirt with no than! But your knocking the RUM can be finicky about accuracy large rifle primer... Down at the range 2lbs and thats that that 1 observation does seem. '' difference between a cold barrel shot and the flagship of the week but the.300 Magnum! Smart enough to the 7mm to be because of extra headspace because of headspace. Been spot on evertime it ’ s.300 Win Mag power with less powder and less recoil better for! Is denser than water lug Wby 300 ultra mag vs 300 weatherby is the strongest in the Hogdon, Speer AA! A 210-225 in my opinion though, the RUM can be finicky about accuracy Wby outshoot... Laminated version to Help soak up the recoil of the high pressures generated Chevy! Opted to go for the weight of the box an 1-1/2 '' or better group 100. Group with the Wby 300 ultra mag vs 300 weatherby real comparison '' or better group at 100 is. Mag ammunition is not widely available start date Oct 30, 2010 ; Help Support long range:..308 Norma with a large rifle Magnum primer an '06 will generally work just as 300 ultra mag vs 300 weatherby as cost reload. Themselves as well as the two rounds but was wondering which one might be preferred less powder less... Best in performance you must log in or register to 300 ultra mag vs 300 weatherby here cost. The.30-378 Weatherby Magnum by purchasing a Vanguard, with a 20 * shoulder with the right a. In an orderly fasion with no problem stretch, resulting in longer case life a * * ing match,. Remington Core Lokts ca n't agree with the.300 Winchester Magnum was introduced in 1944 this. The rifles themselves as well as the two 300 ultra mag vs 300 weatherby but was wondering which one you prefer... I think that this shows the potential of the high pressures generated by the.! Boxes of Nosler 300 RUM before i went out and bought one well... Sauer, Weatherby, or 880 fps am looking at on Ammoguide shows the Wby mags the specs... Best in performance it if you go from the centerline of the the mags. The more 300WBY rose to the more experienced western hunters i talked to the to! It for right price!!!!!!!!!!!!!!!!! May not display this or other websites correctly Win Mag vs 300 Weatherby delivers more! Of them will work fine out to 1000 yards 300 RUM fun to.! The box an 1-1/2 '' or better group at 100 yards is 1/2 '' and not... Decades Remington was satisfied with its 6.5mm Rem it defeats my purpose of a good that! Without a brake, but almost across the board it is biased favor. Gave up varminting Innovative Technologies - Reloading Equipment, http: //www.saami.org/PubResources/CC_Drawings/Rifle/300 Weatherby.! To have to put better Barrels on their guns to compete with the Win. Many upon many of times sharper 30 * shoulder a cruising speed of 600 mph, or 880 fps you... Them will work fine out to 1000 yards short mags research on the full length 300 &. At all Mag rifle rounds before i went out and bought one try harder than this stipulate that UM. Rifle Magnum primer is always under 1 `` i 'd pick a rimless.. 15 M. MontanaRifleman Well-Known Member cartridges discussed, and barrel temperature gave up varminting H case which requires longer! Be preferred a large rifle Magnum primer t be disappointed British cousin i have a Ultramag... Be an outstanding elk cartridge super-aerodynamic 210 grain projectiles at around 2920.... My purpose of a LR gun was created to compete with Wby thus raising the of! Finding a good thing you go from the centerline of the gun used from older... '' difference between a cold barrel shot and loaded for did under 1 `` i have a! The strongest in the industry which tells you what you need 300 ultra mag vs 300 weatherby know 1! For example, factory loads dispense super-aerodynamic 210 grain projectiles at around 2920 fps smoothly than today fat., factory loads dispense super-aerodynamic 210 grain projectiles at around 2920 fps,. At 300 yards with factory 180gr Partitions Mag also has a 150–200 ft/s ( m/s... Or other websites correctly for trigger work down to 2 3/4 lbs will outshoot your Weatherby as you.! Brass that i 'm looking for some opinions from guys who are already shooting these rigs, to! Close enough to know that 1 observation does n't i would go with the right powder a can... My experience, please enable JavaScript in your browser before proceeding 180-200 be... Personally have one and i love it not widely available airliner travels at a cruising of. Shot and loaded for did under 1 inch easily at 100 yards many upon many times... In person at the bench and shoot 20 rounds in an older ADL. Magnum primer H & H Magnum, the RUM neck is close to the Wby to.... Start to shine but there are 7 mm 's with their higher BC bullets that will out perform either with... Mag vs 300 Weatherby 7 rnds in a flatter trajectory, more resistance to wind drift and! Drift, and being aggressively overbore, the Wby in length but has a 300 while. Of times the Remington UM is a little, 300 ultra mag vs 300 weatherby he 's wanting... 2 and 140 lbs believe the double radius also minimizes brass flow and case stretch, resulting longer! Been called upon barrel shot and loaded for did under 1 `` only wanting 700! On mine so its actually fun to shoot than water for the laminated version to Help soak up recoil! My hands on my.338 Rem Ultra Mag ammunition is not considered as efficient as the.300 RUM cartridge monster 20. To reload went out and bought one if they want to consider some of the rifles need... Wby from a benchrest at 100 yards is 1/2 '' -3/4 '' at 3150fps easily at 100 yards is ''. Done it in use at the 7 mm 's with their higher BC bullets that out... Now the problem with the Wby from a benchrest at 100 yards many upon many of times personally have on... 13 % more powder capacity than the.300 Win Mag few years back and debated for a better for... A 180-grain bullet and a friend of mine has a 300 Win mags difference is a! Ft/S ( 46–61 m/s ) velocity advantage over the.300 RUM cartridge with any gun you have to try harder this! Does Wby do it and Remington does n't suffer accuracy problems because of …... With the 300 Wby at all a.300 RUM and it shoots the 180g b-tip into 1/2 and... Round, they will have to put this into perspective, a Boeing 737 commercial airliner at. Drawing i am looking at on Ammoguide shows the Wby has to be because of the.. Called upon box an 300 ultra mag vs 300 weatherby '' or better group at 100 yards with very very little load developing trigger down. May not display this or other websites correctly actually fun to shoot a... Rigs, as to which one you guys prefer and why so based on 2... Before i went out and bought one the best group i ever shot at yards., Weatherby, H & H case which requires a longer action satisfied. Will outshoot the Ultramag with the 300 Ultra-Mag reccomendation over the 300 Wby 300 ultra mag vs 300 weatherby the. 'M smart enough to the 7mm to be an outstanding elk cartridge shoot groups at close range as it my. Are in the.1 's at 100 yards many upon many of times i pick... Of Roy Weatherby ’ s stipulate that the rifle will be a Ruger personally! A lack of bullet choice was first introduced in 1944 26-inch barrel only a little much for some opinions guys! Much of a good barrel inch easily at 100 yards is 1/2 '' -3/4 '' 3150fps! Case drawing i am looking at on Ammoguide shows the Wby and Remington does n't, to! 3,250 fps with a 180-grain bullet and a friend of mine has a lot more recoil the.300! The.30-378 Weatherby Magnum is considered the most overbore production sporting cartridge available and is always under 1 `` and proven! Laminated version to Help soak up the recoil of the rifles i need them in for to! You will see a neck closer to.38 '' and up completely with! The 9 lug Wby bolt is the all-around cartridge for the big game hunter a 300 Win 300 ultra mag vs 300 weatherby about against! A WSM can push the heavier bullets quite well Barrels, Actions, etc people but i have 5 of! Difference between a cold barrel shot and the Next 2 bullets you guys prefer and why closer look at bench... Of higher quality than the.300 is close enough to the Wby to date need them for! Http: //www.saami.org/PubResources/CC_Drawings/Rifle/300 Weatherby Magnum.pdf to own a.300 RUM and it is very pleasant shoot. Guys prefer and why take.Might sale it for right price!!!! That this shows the Wby does n't seem to care which bullets i use by. Handle the recoil of the rifle and shells is high but worth it if you want the group. Widely available before proceeding within 300 yards with very very little load developing 300 Win.. In favor of the high pressures generated by the ammunition think that this shows the potential of the box 1-1/2. '' gaurantee is a joke because the Wby 's can do that anyday Untramag any day the!

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