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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6x55 A.I. questions
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<blockquote data-quote="TG-5150" data-source="post: 1508188" data-attributes="member: 103379"><p>I was raised shooting a Rem 788 in 6mm. I love that caliber and have had a few .243 wins since. I am fairly new to the wildcat arena and was thinking a .243 A.I. would be a pretty neat project. So the research began.</p><p>6mm A.I. is faster but some say more finiky to load for, and has a longer neck which will grab the longer bullets I want to shoot better. Barrel life is supposed to be better over the .243A.I. But not sure on this. Rem. brass might be a concern in the area of longevity in reloads but is very available for me. Don't know if I am ready to make it out of better 7x57 brass yet or not.</p><p>.243 brass in the top shelf varieties is very plentiful. In fact I have once fired brass for it now. It's supposed to be a cinch to load for in all bullet weights(243a.i.).</p><p>Next I read about the 6.5x55 being one of the top gainers to be improved. And that leads me to thinking why not neck that to 6mm then fire form. Some great brass is available </p><p>Would a 6mmx55 improved be a better round for what I want to do?</p><p>Rifle will be built on a M77 tang safety action get a 26" tube in light senders.</p><p>Twist should be between 7 or 8 ?</p><p>Will be shooting 105 gr.</p><p>Thanks for any help and I already know the wows of the M77 but it's what is going on this build <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="TG-5150, post: 1508188, member: 103379"] I was raised shooting a Rem 788 in 6mm. I love that caliber and have had a few .243 wins since. I am fairly new to the wildcat arena and was thinking a .243 A.I. would be a pretty neat project. So the research began. 6mm A.I. is faster but some say more finiky to load for, and has a longer neck which will grab the longer bullets I want to shoot better. Barrel life is supposed to be better over the .243A.I. But not sure on this. Rem. brass might be a concern in the area of longevity in reloads but is very available for me. Don’t know if I am ready to make it out of better 7x57 brass yet or not. .243 brass in the top shelf varieties is very plentiful. In fact I have once fired brass for it now. It’s supposed to be a cinch to load for in all bullet weights(243a.i.). Next I read about the 6.5x55 being one of the top gainers to be improved. And that leads me to thinking why not neck that to 6mm then fire form. Some great brass is available Would a 6mmx55 improved be a better round for what I want to do? Rifle will be built on a M77 tang safety action get a 26” tube in light senders. Twist should be between 7 or 8 ? Will be shooting 105 gr. Thanks for any help and I already know the wows of the M77 but it’s what is going on this build :) [/QUOTE]
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