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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.20 Cal Berger 55gr, any one using?
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<blockquote data-quote="65WSM" data-source="post: 1576222" data-attributes="member: 9551"><p>Update on the 55 Bergers. I was shooting the .20 BR with the 55 gr Bergers alongside two .22 BRs all with 8 twist barrels at 550 yards. The .20 BR was producing 5 shot groups 5-6 inches. I switched to Sierra 77 Tipped Match Kings (I also have evidence the tips melt like Hornady says) and got groups consistently under 3 inches. </p><p></p><p>So that got me thinking. I tried both 40gr Hornady V-Max and 39 gr Sierra Blitzkings in the .20 BR. I was surprised, better shocked, at how accurate the rifle was at 550 yards with the lighter bullets. I have repeated this now in 4 trips to the range. </p><p></p><p>I have a long way to go yet in finding the powder charge I want. .20 BR powder data is scarce. I am auditioning VV N-135, N-140 (next trip when it stops raining) and SO-62 Precision. I have shot good groups with less than a caseful H-4895 and Alliant AR Comp. So far the only powder I have wound out to above 4,000 fps is the VV N-135. Yes, I have three .204 Rugers on deck with 26 inch barrels that can do that. [ATTACH]122738[/ATTACH] [ATTACH=full]122738[/ATTACH]</p></blockquote><p></p>
[QUOTE="65WSM, post: 1576222, member: 9551"] Update on the 55 Bergers. I was shooting the .20 BR with the 55 gr Bergers alongside two .22 BRs all with 8 twist barrels at 550 yards. The .20 BR was producing 5 shot groups 5-6 inches. I switched to Sierra 77 Tipped Match Kings (I also have evidence the tips melt like Hornady says) and got groups consistently under 3 inches. So that got me thinking. I tried both 40gr Hornady V-Max and 39 gr Sierra Blitzkings in the .20 BR. I was surprised, better shocked, at how accurate the rifle was at 550 yards with the lighter bullets. I have repeated this now in 4 trips to the range. I have a long way to go yet in finding the powder charge I want. .20 BR powder data is scarce. I am auditioning VV N-135, N-140 (next trip when it stops raining) and SO-62 Precision. I have shot good groups with less than a caseful H-4895 and Alliant AR Comp. So far the only powder I have wound out to above 4,000 fps is the VV N-135. Yes, I have three .204 Rugers on deck with 26 inch barrels that can do that. [ATTACH]122738[/ATTACH] [ATTACH=full]122738[/ATTACH] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.20 Cal Berger 55gr, any one using?
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