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Long Range Hunting & Shooting
building a new rifle but need some input
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<blockquote data-quote="308 nate" data-source="post: 86613" data-attributes="member: 1920"><p>DanC,</p><p>I have been using Broughton 5C barrels.</p><p>He only offers stainless barrels, and they are Awesome barrels!highly recommended. They run around the 300.00 range.The 7mm barrel will not have quite as long a barrel life as the .300. Anytime you have two cases with similar volume,but two different calibers the smaller caliber will have more of a torch effect than the larger caliber. I have going on 800 rds in my 7mmwsm,I just shot it tonight at 1250 yds and a 4 shot group was right at 9" but my ES was in the mid to high 20's and the spread was mostly vertical.</p><p>I'm hoping to get 1500 rds. before re-chambering to a new throat.</p><p>Barrel life depends on a lot of things,such as neglect,overheating,flame temp.of a particular powder,amount of powder, etc...</p><p>The good ol' .308 has a very long barrel life maybe 3-4 times that of the .300.</p><p>The reason I recommended the 7WSM over the .300, was the recoil( I built and installed a muzzle brake on my 7WSM and it recoils about like a light weight .223(it also helps that the gun weighs about 20lbs.) and that there are getting to be a lot more high B.C bullets for the 7WSM.</p><p>With my 7MMWSM I'm getting 3075, with a bullet B.C of .7.</p><p>Hope this answers some of your questions.</p><p>308nate,</p><p>P.S If you decide on the 7mm order your barrel long,with at least 5-6" of full breech diameter so that when your accuracy starts to drop off you can hack off the old chamber and re-chamber to a new throat...just a thought.</p></blockquote><p></p>
[QUOTE="308 nate, post: 86613, member: 1920"] DanC, I have been using Broughton 5C barrels. He only offers stainless barrels, and they are Awesome barrels!highly recommended. They run around the 300.00 range.The 7mm barrel will not have quite as long a barrel life as the .300. Anytime you have two cases with similar volume,but two different calibers the smaller caliber will have more of a torch effect than the larger caliber. I have going on 800 rds in my 7mmwsm,I just shot it tonight at 1250 yds and a 4 shot group was right at 9" but my ES was in the mid to high 20's and the spread was mostly vertical. I'm hoping to get 1500 rds. before re-chambering to a new throat. Barrel life depends on a lot of things,such as neglect,overheating,flame temp.of a particular powder,amount of powder, etc... The good ol' .308 has a very long barrel life maybe 3-4 times that of the .300. The reason I recommended the 7WSM over the .300, was the recoil( I built and installed a muzzle brake on my 7WSM and it recoils about like a light weight .223(it also helps that the gun weighs about 20lbs.) and that there are getting to be a lot more high B.C bullets for the 7WSM. With my 7MMWSM I'm getting 3075, with a bullet B.C of .7. Hope this answers some of your questions. 308nate, P.S If you decide on the 7mm order your barrel long,with at least 5-6" of full breech diameter so that when your accuracy starts to drop off you can hack off the old chamber and re-chamber to a new throat...just a thought. [/QUOTE]
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building a new rifle but need some input
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