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Rifles, Reloading, Optics, Equipment
Reloading
Primers: Std. vs. Magnum
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<blockquote data-quote="GLTaylor" data-source="post: 1934097" data-attributes="member: 111593"><p>I read a study a long time ago that compared primers. They rated them based upon their "brisance" (i believe that was the term). Basically it measured the amount, length and intensity of the spark produced by each. Magnums supposedly produced more and hotter "spark", supposedly better for igniting larger/denser powder charges?</p><p>I only have 2 observations from my personal testing. In my 338 Sherman with 62 grs of Varget I pressured out too early with mag primers. Switched to Fed 210 and gained another 2 grs of powder, good velocity and speed with 213gr Hammers.</p><p>Second test was with my 6.5 CM and small primer pockets. CCI SRP were erratic. Went to 450s and found good stability, good speed and lower SD and ES. Guess it depends on the rifle!</p></blockquote><p></p>
[QUOTE="GLTaylor, post: 1934097, member: 111593"] I read a study a long time ago that compared primers. They rated them based upon their "brisance" (i believe that was the term). Basically it measured the amount, length and intensity of the spark produced by each. Magnums supposedly produced more and hotter "spark", supposedly better for igniting larger/denser powder charges? I only have 2 observations from my personal testing. In my 338 Sherman with 62 grs of Varget I pressured out too early with mag primers. Switched to Fed 210 and gained another 2 grs of powder, good velocity and speed with 213gr Hammers. Second test was with my 6.5 CM and small primer pockets. CCI SRP were erratic. Went to 450s and found good stability, good speed and lower SD and ES. Guess it depends on the rifle! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Primers: Std. vs. Magnum
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