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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm/300 Norma Mag
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<blockquote data-quote="Gamesniper19" data-source="post: 1788959" data-attributes="member: 95013"><p>Comparison photo of my 7 Norma Improved with the 195 berger next to my 6.5 GAP with a 140 berger. My cocktail is:</p><p>26 inch 8 twist PROOF Sendero bbl</p><p>Case length trimmed to 2.500</p><p>86.2 grains Retumbo - CCI 250 primer</p><p>195 Berger EOL - .002 jump</p><p>3190 FPS at approx 85% case capacity</p><p></p><p>Overbore rifles MUST use premium brass to achieve possible velocity. I began using norma brass when I built the rifle last year and immediately had primer pocket issues and slight pressure signs. Moved to Peterson brass and both of those issues went away. I believe I can achieve mid 3200's with this barrel and set up but when I am shooting 5 shot groups in the 2's, why push it - hope to get 800 to 1000 out of this barrel.</p></blockquote><p></p>
[QUOTE="Gamesniper19, post: 1788959, member: 95013"] Comparison photo of my 7 Norma Improved with the 195 berger next to my 6.5 GAP with a 140 berger. My cocktail is: 26 inch 8 twist PROOF Sendero bbl Case length trimmed to 2.500 86.2 grains Retumbo - CCI 250 primer 195 Berger EOL - .002 jump 3190 FPS at approx 85% case capacity Overbore rifles MUST use premium brass to achieve possible velocity. I began using norma brass when I built the rifle last year and immediately had primer pocket issues and slight pressure signs. Moved to Peterson brass and both of those issues went away. I believe I can achieve mid 3200's with this barrel and set up but when I am shooting 5 shot groups in the 2's, why push it - hope to get 800 to 1000 out of this barrel. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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7mm/300 Norma Mag
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