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22-250 build help
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<blockquote data-quote="orwapitihunter" data-source="post: 828649" data-attributes="member: 1939"><p>I specifically built my 22-250 AI to shoot the 75gr Amax.</p><p>I went with a Rem 700, and a Rem varmint weight Hart 9 twist.</p><p>Finished length at 27".</p><p>I picked H414 for fuel and launch the 75s at 3400.</p><p>Accuracy has been outstanding with groups running between sub .1 and .25". I have also found 69gr SMKs and 50gr TNTs to shoot <.25".</p><p>But I do keep the 50gr TNTs throttled back. I haven't blown any up, but I did blow up some 50gr SXs, so I figured why push it with the TNTs as they were for sub 200 yard use.</p><p></p><p>For long range play, I have found the 75 AMAX at 3400 to be fun and easy to shoot accurately to about 800 yards. Past that the average conditions that I shoot in make hitting small targets (sub MOA) frustrating. We have shot it to a bit over 1K, with good conditions it is amazing.</p><p></p><p>I also have a 223 that I put together to keep the kids from shooting my 22-250Ai to death.</p><p>To be certain that the 75gr AMAX would stabilize at 223 velocities I went with an 8 twist and finished it at 24". The 223 hits right about 3000fps burning TAC. Accuracy seems to run a bit under .25 MOA.</p><p>I have also ran full power 40gr VMAXs with similar accuracy.</p><p></p><p>The long range fun seems to change to frustration about 650ish. Same kinda deal, the typical conditions just get to be past my ability to dope the small changes that equal a near miss.</p></blockquote><p></p>
[QUOTE="orwapitihunter, post: 828649, member: 1939"] I specifically built my 22-250 AI to shoot the 75gr Amax. I went with a Rem 700, and a Rem varmint weight Hart 9 twist. Finished length at 27". I picked H414 for fuel and launch the 75s at 3400. Accuracy has been outstanding with groups running between sub .1 and .25". I have also found 69gr SMKs and 50gr TNTs to shoot <.25". But I do keep the 50gr TNTs throttled back. I haven't blown any up, but I did blow up some 50gr SXs, so I figured why push it with the TNTs as they were for sub 200 yard use. For long range play, I have found the 75 AMAX at 3400 to be fun and easy to shoot accurately to about 800 yards. Past that the average conditions that I shoot in make hitting small targets (sub MOA) frustrating. We have shot it to a bit over 1K, with good conditions it is amazing. I also have a 223 that I put together to keep the kids from shooting my 22-250Ai to death. To be certain that the 75gr AMAX would stabilize at 223 velocities I went with an 8 twist and finished it at 24". The 223 hits right about 3000fps burning TAC. Accuracy seems to run a bit under .25 MOA. I have also ran full power 40gr VMAXs with similar accuracy. The long range fun seems to change to frustration about 650ish. Same kinda deal, the typical conditions just get to be past my ability to dope the small changes that equal a near miss. [/QUOTE]
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