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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
22-250 witha 8" twist
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<blockquote data-quote="Fiftydriver" data-source="post: 158156" data-attributes="member: 10"><p><strong>Re: 22-250 witha 8\" twist</strong></p><p></p><p>Jim,</p><p></p><p>Your 107s are shooting so well because of their relatively heavy jackets for a match type bullet.</p><p></p><p>In your 6-250, I would be suprised if you see a problem with the Berger or A-Max coming apart in the 3 groove. I have found the velocity limit where this issue comes into play is generally around 3200 fps with 3 groove barrels. If you keep velocity under that, no problem at all, over that and you generally get accuracy loss at best and total bullet failure at worst.</p><p></p><p>Your 6-250 will not be able to safely drive a 105 gr bullet to anywhere near 3200 fps.</p><p></p><p>On the other hand, the round in question, a 22-250 AI loaded with 75 to 80 gr bullets will certainly be able to reach this level of velocity. And that is why I made the recommendation. If it were a standard 22-250 I would say not as big of a deal but he will get an extra 100 to 150 fps out of the AI version and that will put him into the velocity range where there could be problems.</p><p></p><p>If he were shooting sierra bullets, there would more then likely not be a problem either because of the heavier jackets.</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 158156, member: 10"] [b]Re: 22-250 witha 8\" twist[/b] Jim, Your 107s are shooting so well because of their relatively heavy jackets for a match type bullet. In your 6-250, I would be suprised if you see a problem with the Berger or A-Max coming apart in the 3 groove. I have found the velocity limit where this issue comes into play is generally around 3200 fps with 3 groove barrels. If you keep velocity under that, no problem at all, over that and you generally get accuracy loss at best and total bullet failure at worst. Your 6-250 will not be able to safely drive a 105 gr bullet to anywhere near 3200 fps. On the other hand, the round in question, a 22-250 AI loaded with 75 to 80 gr bullets will certainly be able to reach this level of velocity. And that is why I made the recommendation. If it were a standard 22-250 I would say not as big of a deal but he will get an extra 100 to 150 fps out of the AI version and that will put him into the velocity range where there could be problems. If he were shooting sierra bullets, there would more then likely not be a problem either because of the heavier jackets. Kirby Allen(50) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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22-250 witha 8" twist
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