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Rifles, Reloading, Optics, Equipment
Reloading
Better accuracy with Virgin Brass?
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<blockquote data-quote="MTLIVIN" data-source="post: 1186539" data-attributes="member: 42384"><p>Well, finally made it back out to the range again and I think I found the issue. I sized the Norma brass like I normally would with a 0.001 shoulder bump & .002 undersized neck bushing. Shooting 180 hybrids with a 0.015" jump.</p><p> </p><p>I did a quick velocity test and found I had to drop 0.2-0.3 grains to get the same velocity of the virgin brass load that shot so well. I then shot groups and was surprised to see how much the group was opening and closing between even 0.2 grain increments. However, the same velocity that shot well with virgin brass also shot well with the reloads. Just 20 fps higher and my group grew to over double in size! </p><p> </p><p>So maybe I don't have an incredibly stable accuracy node, but I would need to try another powder to find one that isn't soo sensitive to variation, and with 10 lbs of the same lot H1000 I think I will settle for now.</p></blockquote><p></p>
[QUOTE="MTLIVIN, post: 1186539, member: 42384"] Well, finally made it back out to the range again and I think I found the issue. I sized the Norma brass like I normally would with a 0.001 shoulder bump & .002 undersized neck bushing. Shooting 180 hybrids with a 0.015" jump. I did a quick velocity test and found I had to drop 0.2-0.3 grains to get the same velocity of the virgin brass load that shot so well. I then shot groups and was surprised to see how much the group was opening and closing between even 0.2 grain increments. However, the same velocity that shot well with virgin brass also shot well with the reloads. Just 20 fps higher and my group grew to over double in size! So maybe I don't have an incredibly stable accuracy node, but I would need to try another powder to find one that isn't soo sensitive to variation, and with 10 lbs of the same lot H1000 I think I will settle for now. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Better accuracy with Virgin Brass?
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