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Rifles, Reloading, Optics, Equipment
Reloading
5 shot groups 3 together and 2 fliers?
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<blockquote data-quote="TonyRumore" data-source="post: 2860158" data-attributes="member: 2222"><p>Back in 1998, I was doing the initial testing of our new AR-15 uppers chambered in 50 Action Express and 440 Corbon. I was getting the exact same thing. 3 shots would pile into one hole, then 2 shots would pile into another hole about two inches away. After reducing the barrel twist, the problem went away. I believe we started around 1:18 and settled on 1:25. If you go to the Pac-Nor website, you will see that you can buy .500 and .429 barrels in 1:25 twist. I paid for the tooling to make that happen.</p><p></p><p>Tony Rumore</p><p>Tromix</p></blockquote><p></p>
[QUOTE="TonyRumore, post: 2860158, member: 2222"] Back in 1998, I was doing the initial testing of our new AR-15 uppers chambered in 50 Action Express and 440 Corbon. I was getting the exact same thing. 3 shots would pile into one hole, then 2 shots would pile into another hole about two inches away. After reducing the barrel twist, the problem went away. I believe we started around 1:18 and settled on 1:25. If you go to the Pac-Nor website, you will see that you can buy .500 and .429 barrels in 1:25 twist. I paid for the tooling to make that happen. Tony Rumore Tromix [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
5 shot groups 3 together and 2 fliers?
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