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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
22 creedmoor
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<blockquote data-quote="highdrum" data-source="post: 2582582" data-attributes="member: 13732"><p>Any updates on blowing up 85.5? I just ordered a 22 7tw barrel, it however is a 219 bore diam the more common 218. The barrel will be finished at 18" so I'm not too worried as speed will likely be 3100 or so. I have a 22gt 219 bore 7tw shooting 90atips. During testing I was near 3300fps without blowing anything up. I really think the bore diameter makes a big difference on jacket engraving and jacket deformation/pressure.</p></blockquote><p></p>
[QUOTE="highdrum, post: 2582582, member: 13732"] Any updates on blowing up 85.5? I just ordered a 22 7tw barrel, it however is a 219 bore diam the more common 218. The barrel will be finished at 18" so I'm not too worried as speed will likely be 3100 or so. I have a 22gt 219 bore 7tw shooting 90atips. During testing I was near 3300fps without blowing anything up. I really think the bore diameter makes a big difference on jacket engraving and jacket deformation/pressure. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
22 creedmoor
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