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Hunting
Extreme Long Range Hunting & Shooting (ELR)
375 cheytac finally finished!
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<blockquote data-quote="nmbarta" data-source="post: 1517821" data-attributes="member: 78438"><p>I run 133 grains of retumbo behind a 350 rmb with bertram brass.</p><p>I would think that 125-128 would be a good place to start, but I don't know enough about that bullet to know that for sure.</p><p>The bertram brass I have will hold one grain more powder than my peterson (unfired) when I fill them flush. I know this isn't the most accurate way of doing this, but it does tell me that the case capacity is less than 1% different.</p><p>When I switch to the peterson brass, I'll back off to 128 to be safe, but I'm sure I'll end up back at 132-133. </p><p>It's hard to find good info on this, so I'd thought I'd throw that out there, you can take it for what it's worth.</p><p>Good luck with it, that's a beautiful rifle.</p></blockquote><p></p>
[QUOTE="nmbarta, post: 1517821, member: 78438"] I run 133 grains of retumbo behind a 350 rmb with bertram brass. I would think that 125-128 would be a good place to start, but I don't know enough about that bullet to know that for sure. The bertram brass I have will hold one grain more powder than my peterson (unfired) when I fill them flush. I know this isn't the most accurate way of doing this, but it does tell me that the case capacity is less than 1% different. When I switch to the peterson brass, I'll back off to 128 to be safe, but I'm sure I'll end up back at 132-133. It's hard to find good info on this, so I'd thought I'd throw that out there, you can take it for what it's worth. Good luck with it, that's a beautiful rifle. [/QUOTE]
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Extreme Long Range Hunting & Shooting (ELR)
375 cheytac finally finished!
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