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Hunting
Extreme Long Range Hunting & Shooting (ELR)
300 norma imp v 30-338 lapua imp
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<blockquote data-quote="Mike D Texas" data-source="post: 2743359" data-attributes="member: 71221"><p>What powder do you want to use? I have a 300NMI with a 24.5" HCA barrel. Doing ladder tests with 230 OTM, 230 ATip and 250 ATip. </p><p></p><p>230 OTM - Pressure at 3198fps</p><p>230 ATip - Pressure at 3240</p><p>250 ATip - Pressure at 3175</p><p></p><p>Now when I say pressure I mean hard click, stiff bolt, plunger marks on brass.</p><p></p><p>The barrel is throated for 230 OTMs. 230 OTMs were touching and the A Tips were .020" jump.</p><p>Brass is ADG and powder is N570.</p></blockquote><p></p>
[QUOTE="Mike D Texas, post: 2743359, member: 71221"] What powder do you want to use? I have a 300NMI with a 24.5” HCA barrel. Doing ladder tests with 230 OTM, 230 ATip and 250 ATip. 230 OTM - Pressure at 3198fps 230 ATip - Pressure at 3240 250 ATip - Pressure at 3175 Now when I say pressure I mean hard click, stiff bolt, plunger marks on brass. The barrel is throated for 230 OTMs. 230 OTMs were touching and the A Tips were .020” jump. Brass is ADG and powder is N570. [/QUOTE]
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300 norma imp v 30-338 lapua imp
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