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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
22-250 for heavier bullets?
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<blockquote data-quote="Fiftydriver" data-source="post: 35667" data-attributes="member: 10"><p>Foxhunter,</p><p></p><p>THe A-Max will top out at around 3200-3250 fps in a 1-8" twist, at least that is what I am seeing with the 22, 6mm and 6.5 versions in mu custom rifles.</p><p></p><p>The Sierra Mk's will generally get you another +300 fps accurately but on game performance will suffer. If your pucnching paper they are great and if you use larger diameter Mk's they also work great. The small, 22 and 6mm versions do not perform real well on light varmints, under 15 lbs at extreme range.</p><p></p><p>In a 1-9 twist, this will be a little different. I have a customer shootign the 105 gr A-Max bullets out of his 6mm-06 at just shy of 3600 fps and he is getting groups in the .3" range.</p><p></p><p>The slower twist certainly is more gental to the A-Max but you also need the velocity to make them work well. </p><p></p><p>The 220 AI will have plenty of power to do this. I would say you will get 100 fps more then the 22-250 AI.</p><p></p><p>Good Shooting!!!</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 35667, member: 10"] Foxhunter, THe A-Max will top out at around 3200-3250 fps in a 1-8" twist, at least that is what I am seeing with the 22, 6mm and 6.5 versions in mu custom rifles. The Sierra Mk's will generally get you another +300 fps accurately but on game performance will suffer. If your pucnching paper they are great and if you use larger diameter Mk's they also work great. The small, 22 and 6mm versions do not perform real well on light varmints, under 15 lbs at extreme range. In a 1-9 twist, this will be a little different. I have a customer shootign the 105 gr A-Max bullets out of his 6mm-06 at just shy of 3600 fps and he is getting groups in the .3" range. The slower twist certainly is more gental to the A-Max but you also need the velocity to make them work well. The 220 AI will have plenty of power to do this. I would say you will get 100 fps more then the 22-250 AI. Good Shooting!!! Kirby Allen(50) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
22-250 for heavier bullets?
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