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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Is my twist rate OK for my 7mm??
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<blockquote data-quote="orwapitihunter" data-source="post: 754124" data-attributes="member: 1939"><p>Years back I spent a month taking some NRA gunsmithing classes at Lassen college.</p><p>I was in a pinch for time to get a couple of barrel blanks, so I ended up with a 10 twist blank for the 280 AI build I was doing. I haven't ever really wrung that rifle out, as I built it for my wife, and she prefers her 7-08. But I did play with the 160 NAB, and it seemed to shoot fine out at 700 yards.</p><p>I did most of my shooting at about 1000 feet elevation and in temps around 50 F.</p><p>With that said I would say the only way to know for sure what your rifle will do is to shoot it.</p><p>One thing to keep in mind, if you are on the edge of stabitity, a change in conditions could push you over the edge. One of my friends had problem shooting a match at lower elevation than he had tested his rifle at when shooting at home. His problem was more dropping through the sonic barrier, than a twist issue. But it shows that elevation changes, or temp changes can be an issue when you are on the edge.</p><p></p><p>Would you be running the same handle over on the Campfire?</p></blockquote><p></p>
[QUOTE="orwapitihunter, post: 754124, member: 1939"] Years back I spent a month taking some NRA gunsmithing classes at Lassen college. I was in a pinch for time to get a couple of barrel blanks, so I ended up with a 10 twist blank for the 280 AI build I was doing. I haven't ever really wrung that rifle out, as I built it for my wife, and she prefers her 7-08. But I did play with the 160 NAB, and it seemed to shoot fine out at 700 yards. I did most of my shooting at about 1000 feet elevation and in temps around 50 F. With that said I would say the only way to know for sure what your rifle will do is to shoot it. One thing to keep in mind, if you are on the edge of stabitity, a change in conditions could push you over the edge. One of my friends had problem shooting a match at lower elevation than he had tested his rifle at when shooting at home. His problem was more dropping through the sonic barrier, than a twist issue. But it shows that elevation changes, or temp changes can be an issue when you are on the edge. Would you be running the same handle over on the Campfire? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Is my twist rate OK for my 7mm??
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