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<blockquote data-quote="IdahoCTD" data-source="post: 1124066" data-attributes="member: 13110"><p>Here is my .02</p><p></p><p>With a lighter weight pack gun stick with a .30 magnum or smaller if your shooting 1000yds or less. Most people don't like 338's with 300gr bullets in a light weight gun. Some people shoot them OK but most don't shoot them as well as something with less recoil. Like Broz said the larger calibers do kill better but that doesn't mean the smaller calibers don't kill things every time too. He can attest to that with his 300wm. I would do a brake on whatever I built.</p><p></p><p>There are a lot of people that can build really accurate rifles and I don't think there is necessarily one that is better than the other that has been listed. Call them all and talk to them. Tell them what you want and ask for cost and lead times. Then see which one you get warm and fuzzy about.</p><p></p><p>A 300RUM burns 90+grs of powder with heavier bullets than the 7RM burning 70grs of powder with lighter bullets. All things equal the 300RUM will have a good deal more recoil. For example: A 300RUM with 215's at 3200fps in a 10lb rifle has 39lb of recoil. A 7RM with 168's at 3000fps has 22lbs of recoil in the same weight rifle. A 338 Lapua with 300's at 2800 in a 10lb rifle has 50lbs of recoil. Muzzle brakes only work on secondary recoil which is the gases created by the ignition of the round and not on primary recoil which is the acceleration of the bullet. The heavier the bullet the more primary recoil. So muzzle brakes aren't as effective on .338's with 300gr bullets as they are on 300's with 215's. Also as the bore get's larger brakes become less effective because more of the gases escape the brake behind the bullet. </p><p></p><p>You can compared recoil in different rifles on JBM's website.</p><p></p><p><a href="http://www.jbmballistics.com/cgi-bin/jbmrecoil-5.1.cgi" target="_blank">JBM - Calculations - Recoil</a></p></blockquote><p></p>
[QUOTE="IdahoCTD, post: 1124066, member: 13110"] Here is my .02 With a lighter weight pack gun stick with a .30 magnum or smaller if your shooting 1000yds or less. Most people don't like 338's with 300gr bullets in a light weight gun. Some people shoot them OK but most don't shoot them as well as something with less recoil. Like Broz said the larger calibers do kill better but that doesn't mean the smaller calibers don't kill things every time too. He can attest to that with his 300wm. I would do a brake on whatever I built. There are a lot of people that can build really accurate rifles and I don't think there is necessarily one that is better than the other that has been listed. Call them all and talk to them. Tell them what you want and ask for cost and lead times. Then see which one you get warm and fuzzy about. A 300RUM burns 90+grs of powder with heavier bullets than the 7RM burning 70grs of powder with lighter bullets. All things equal the 300RUM will have a good deal more recoil. For example: A 300RUM with 215's at 3200fps in a 10lb rifle has 39lb of recoil. A 7RM with 168's at 3000fps has 22lbs of recoil in the same weight rifle. A 338 Lapua with 300's at 2800 in a 10lb rifle has 50lbs of recoil. Muzzle brakes only work on secondary recoil which is the gases created by the ignition of the round and not on primary recoil which is the acceleration of the bullet. The heavier the bullet the more primary recoil. So muzzle brakes aren't as effective on .338's with 300gr bullets as they are on 300's with 215's. Also as the bore get's larger brakes become less effective because more of the gases escape the brake behind the bullet. You can compared recoil in different rifles on JBM's website. [url=http://www.jbmballistics.com/cgi-bin/jbmrecoil-5.1.cgi]JBM - Calculations - Recoil[/url] [/QUOTE]
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