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<blockquote data-quote="308win" data-source="post: 3062897" data-attributes="member: 102230"><p>Just a quick clarification (as I got confused when you were asking about a 300WM) when you were wanting pressures for a 7-08AI? I think this is what you were asking?</p><p></p><p>7-08 (20" barrel) w/140accubond and 48gr H4350 @ 2806fps = 64,303psi</p><p></p><p>7-08AI (20" barrel) w/140accubond and 48gr H4350 @ 2806fps = 61,524psi</p><p></p><p>A difference of 2,779psi</p><p></p><p>This is using Quickloads 55gr case capacity for a standard 7-08 and 58.3gr for 7-08AI. Both of these outcomes are over the listed Max pressure of 60,191psi.</p><p></p><p>Now with that behind us, let's see what YOUR load is doing with the information given? I'll use my Alpha brass case capacity of 56.62gr since you do not have that information.</p><p>7-0AI (20") w/140accubond and 48gr H4350 @ 2806fps = 62,707psi. Approximately 2,516psi over pressure. With that information I would back the charge down to 46.8gr @ 2733fps and 57,616psi. 2800fps with a 140gr bullet out of a 20" barrel is really leaning on it, I would be careful. Good luck</p></blockquote><p></p>
[QUOTE="308win, post: 3062897, member: 102230"] Just a quick clarification (as I got confused when you were asking about a 300WM) when you were wanting pressures for a 7-08AI? I think this is what you were asking? 7-08 (20" barrel) w/140accubond and 48gr H4350 @ 2806fps = 64,303psi 7-08AI (20" barrel) w/140accubond and 48gr H4350 @ 2806fps = 61,524psi A difference of 2,779psi This is using Quickloads 55gr case capacity for a standard 7-08 and 58.3gr for 7-08AI. Both of these outcomes are over the listed Max pressure of 60,191psi. Now with that behind us, let's see what YOUR load is doing with the information given? I'll use my Alpha brass case capacity of 56.62gr since you do not have that information. 7-0AI (20") w/140accubond and 48gr H4350 @ 2806fps = 62,707psi. Approximately 2,516psi over pressure. With that information I would back the charge down to 46.8gr @ 2733fps and 57,616psi. 2800fps with a 140gr bullet out of a 20" barrel is really leaning on it, I would be careful. Good luck [/QUOTE]
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