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22-250 projectile choice
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<blockquote data-quote="benchracer" data-source="post: 1071916" data-attributes="member: 22069"><p>When I had a 14 twist barrel, my 22-250 showed a distinct preference for the 50 grain VMAX and 52 grain AMAX. It actually shot the AMAX more accurately, but with a sizeable penalty in speed. None of the 55 grain bullets shot well from the 14 twist.</p><p> </p><p>My 22-250 now has a 12 twist barrel, which I much prefer over a 14 twist. The 53 VMAX has become my bullet of choice since going to a 12 twist.</p><p> </p><p>IMO, there are MUCH better options than H380 in the 22-250. Varget works well, but does not produce top velocities. IMR 8208 XBR is also very good and produces decent velocity. CFE 223 is another excellent choice, producing both speed and accuracy. Being a ball powder, it should be used with magnum primers for best results. </p><p> </p><p>Of all the powders I have tried, RL-17 has proven to be the best by a wide margin. It has consistently yielded the best accuracy AND the highest velocity. You won't find it in book data for the 22-250. I recommend that you start around 36.0 grains and work up from there, watching carefully for pressure signs.</p><p> </p><p>One final note regarding the 22-250: I have found the standard chamber to have a lot of freebore. Neither barrel I have had shot well with anything loaded to book length (2.350"). Both barrels have done their best work with COAL in the vicinity of 2.430", regardless of the bullet used. For best accuracy, make sure to test seating depth. </p><p> </p><p>The Berger seating depth test (<a href="http://www.bergerbullets.com/getting-the-best-precision-and-accuracy-from-vld-bullets-in-your-rifle/" target="_blank">Getting the Best Precision and Accuracy from VLD Bullets in Your Rifle | Berger Bullets Blog</a>) is a good place to start, though you may have to modify the test somewhat, because you are not likely to get anywhere near touching the lands with a bullet that will stabilize from a 14 twist.</p></blockquote><p></p>
[QUOTE="benchracer, post: 1071916, member: 22069"] When I had a 14 twist barrel, my 22-250 showed a distinct preference for the 50 grain VMAX and 52 grain AMAX. It actually shot the AMAX more accurately, but with a sizeable penalty in speed. None of the 55 grain bullets shot well from the 14 twist. My 22-250 now has a 12 twist barrel, which I much prefer over a 14 twist. The 53 VMAX has become my bullet of choice since going to a 12 twist. IMO, there are MUCH better options than H380 in the 22-250. Varget works well, but does not produce top velocities. IMR 8208 XBR is also very good and produces decent velocity. CFE 223 is another excellent choice, producing both speed and accuracy. Being a ball powder, it should be used with magnum primers for best results. Of all the powders I have tried, RL-17 has proven to be the best by a wide margin. It has consistently yielded the best accuracy AND the highest velocity. You won't find it in book data for the 22-250. I recommend that you start around 36.0 grains and work up from there, watching carefully for pressure signs. One final note regarding the 22-250: I have found the standard chamber to have a lot of freebore. Neither barrel I have had shot well with anything loaded to book length (2.350"). Both barrels have done their best work with COAL in the vicinity of 2.430", regardless of the bullet used. For best accuracy, make sure to test seating depth. The Berger seating depth test ([url=http://www.bergerbullets.com/getting-the-best-precision-and-accuracy-from-vld-bullets-in-your-rifle/]Getting the Best Precision and Accuracy from VLD Bullets in Your Rifle | Berger Bullets Blog[/url]) is a good place to start, though you may have to modify the test somewhat, because you are not likely to get anywhere near touching the lands with a bullet that will stabilize from a 14 twist. [/QUOTE]
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