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Rifles, Reloading, Optics, Equipment
Reloading
How often do you guys test different primers to help with accuracy?
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<blockquote data-quote="LoneTraveler" data-source="post: 1208013" data-attributes="member: 77249"><p>The right primer is one important link to accuracy IMO. About 1973 I got a quick lesson in primers. I was working on the rifle cleaning out the barrel channel from a messed up glass bedding. the action bedding was good the barrel was ugly. The owner said ,The rifle shot nickel groups at 100 yds. before the bedding. I loaded 80 gr. bullets, IMR 4064 powder and CCI 200 standard primers in 243 Win. brass. Rifle was shooting 1" groups. Same can of powder same load on same scale, same box of bullets, same brass, with REM. 91/2 primer. First 5 shot group completely disappeared under a dime. Happy owner when he picked his rifle.</p><p>My brother was having a shot to drop low right 5-6 inches about 1 in 10 shots at 100 yds. out of his 700 338 WM. He was blaming himself for the bad shot. When we got a chance to chronograph the loads we found that the low right shot was about 200 FPS slower. He changed primers and the stray shots disappeared.</p></blockquote><p></p>
[QUOTE="LoneTraveler, post: 1208013, member: 77249"] The right primer is one important link to accuracy IMO. About 1973 I got a quick lesson in primers. I was working on the rifle cleaning out the barrel channel from a messed up glass bedding. the action bedding was good the barrel was ugly. The owner said ,The rifle shot nickel groups at 100 yds. before the bedding. I loaded 80 gr. bullets, IMR 4064 powder and CCI 200 standard primers in 243 Win. brass. Rifle was shooting 1" groups. Same can of powder same load on same scale, same box of bullets, same brass, with REM. 91/2 primer. First 5 shot group completely disappeared under a dime. Happy owner when he picked his rifle. My brother was having a shot to drop low right 5-6 inches about 1 in 10 shots at 100 yds. out of his 700 338 WM. He was blaming himself for the bad shot. When we got a chance to chronograph the loads we found that the low right shot was about 200 FPS slower. He changed primers and the stray shots disappeared. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
How often do you guys test different primers to help with accuracy?
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