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Rifles, Reloading, Optics, Equipment
Gunsmithing
After re-barrel :: 2 shots close together and 1 shot further out
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<blockquote data-quote="Mike Matteson" data-source="post: 2074725" data-attributes="member: 101791"><p>I shoot a 220 Swift and for years. Try IMR4064 powder. I used it in several swifts with very good groups with most touching at 100yrs, and under 3/8". All our barrels are heavy or bull barrels. Those barrels are 1-14 twist, and between 24 1/2" to 26" barrel lengths. We use 52,53, & 55gr Sierra bullets. The other is you need to check each shot to see which one is flying. When the 22-250 came out they were using a 1-14 twist. I see you are using a 1-12 twist barrel. That maybe a little quick for a 55gr bullet. Some barrels like being fouled, and others being clean. I would also try a heaver bullets being you are using a faster twist. Why did you shorten the barrel to start with? Leaving the barrel longer does this. As the throat burns out, and the muzzle wares out. The barrel can be cut down to put it back into working order. You are not braking in a new barrel.</p></blockquote><p></p>
[QUOTE="Mike Matteson, post: 2074725, member: 101791"] I shoot a 220 Swift and for years. Try IMR4064 powder. I used it in several swifts with very good groups with most touching at 100yrs, and under 3/8". All our barrels are heavy or bull barrels. Those barrels are 1-14 twist, and between 24 1/2" to 26" barrel lengths. We use 52,53, & 55gr Sierra bullets. The other is you need to check each shot to see which one is flying. When the 22-250 came out they were using a 1-14 twist. I see you are using a 1-12 twist barrel. That maybe a little quick for a 55gr bullet. Some barrels like being fouled, and others being clean. I would also try a heaver bullets being you are using a faster twist. Why did you shorten the barrel to start with? Leaving the barrel longer does this. As the throat burns out, and the muzzle wares out. The barrel can be cut down to put it back into working order. You are not braking in a new barrel. [/QUOTE]
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After re-barrel :: 2 shots close together and 1 shot further out
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