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<blockquote data-quote="TMR" data-source="post: 1872929" data-attributes="member: 5819"><p>I designed the cartridges to be able to duplicate or exceed RUM/Edge performances, yet be able to keep them as a repeater with today's longer bullets. The 338 for example, I can run 300gr Bergers as a repeater easily and get just over 2900fps in a 26" barrel. In all the years of building 338 Edges (close to 200 of them), they will run 300's at around the 2900 mark in a 30" barrel, 2850ish in a 28" barrel and are under 2800 in a 26" barrel. That's not to say that there isn't rare fast barrel out there or guys are pushing things to get the speeds. I will be bringing out another 338 eventually that is based on the 7mm and 300 RBH case design. It will add a few more grains of case capacity bumping up the performance more.</p><p></p><p>The case capacity on the RBH cases is virtually identical to the RUM/Edge cases, yet a guy can utilize all the case capacity rather than having the bullet take up so much room. The numbers Robert mentioned in the beginning are not the max velocities. I have run my 300 RBH up to just over 3300 with 230's before hitting pressure in a 26" barrel. My personal rifle runs 3198fps with an ES of 4 with the 230 OTM out of a 26" Proof carbon barrel. I'm on my 6th firing on the brass and primer pockets are still like new. The 7's we ran 180's up to 3450 before hitting pressure signs. Problem is, these light rifles are violent and hard to shoot at those speeds, that is why we have them throttled back. Much easier to shoot and easier on components. If anyone has any questions they can email me at <a href="mailto:tmr@rbrosrifles.com">tmr@rbrosrifles.com</a> since I don't get on the forums much.</p></blockquote><p></p>
[QUOTE="TMR, post: 1872929, member: 5819"] I designed the cartridges to be able to duplicate or exceed RUM/Edge performances, yet be able to keep them as a repeater with today's longer bullets. The 338 for example, I can run 300gr Bergers as a repeater easily and get just over 2900fps in a 26" barrel. In all the years of building 338 Edges (close to 200 of them), they will run 300's at around the 2900 mark in a 30" barrel, 2850ish in a 28" barrel and are under 2800 in a 26" barrel. That's not to say that there isn't rare fast barrel out there or guys are pushing things to get the speeds. I will be bringing out another 338 eventually that is based on the 7mm and 300 RBH case design. It will add a few more grains of case capacity bumping up the performance more. The case capacity on the RBH cases is virtually identical to the RUM/Edge cases, yet a guy can utilize all the case capacity rather than having the bullet take up so much room. The numbers Robert mentioned in the beginning are not the max velocities. I have run my 300 RBH up to just over 3300 with 230's before hitting pressure in a 26" barrel. My personal rifle runs 3198fps with an ES of 4 with the 230 OTM out of a 26" Proof carbon barrel. I'm on my 6th firing on the brass and primer pockets are still like new. The 7's we ran 180's up to 3450 before hitting pressure signs. Problem is, these light rifles are violent and hard to shoot at those speeds, that is why we have them throttled back. Much easier to shoot and easier on components. If anyone has any questions they can email me at [email]tmr@rbrosrifles.com[/email] since I don't get on the forums much. [/QUOTE]
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