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Hunting
Extreme Long Range Hunting & Shooting (ELR)
Powder load volume/ muzzle velocities?
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<blockquote data-quote="Greyfox" data-source="post: 1339303" data-attributes="member: 10291"><p>I estimate my muzzle velocity variation to my thrown weights to be in the 2/3FPS range. I did some work with my 6.5x284 MV(2975) and my 6,5x47 MV(2880). Using Retumbo and H4350 respectively. Each .1gr for these loads is 5-6FPS. 10 FPS impacts elevation .1Mil(.36MOA) at 1000 yards. My RCBS Chargemaster throws to within .05grs. I estimate my variation due to charge weight at 1000 yards to be 1-.2 MOA. This is very close to a study performed by the US military that I read many years ago. Their data for the 30-06 yards indicated that .1gr variation in charge weight would approximately result in a .1MOA varaiation in POI at 1000 yards.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 1339303, member: 10291"] I estimate my muzzle velocity variation to my thrown weights to be in the 2/3FPS range. I did some work with my 6.5x284 MV(2975) and my 6,5x47 MV(2880). Using Retumbo and H4350 respectively. Each .1gr for these loads is 5-6FPS. 10 FPS impacts elevation .1Mil(.36MOA) at 1000 yards. My RCBS Chargemaster throws to within .05grs. I estimate my variation due to charge weight at 1000 yards to be 1-.2 MOA. This is very close to a study performed by the US military that I read many years ago. Their data for the 30-06 yards indicated that .1gr variation in charge weight would approximately result in a .1MOA varaiation in POI at 1000 yards. [/QUOTE]
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Hunting
Extreme Long Range Hunting & Shooting (ELR)
Powder load volume/ muzzle velocities?
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