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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 Sherman Shortmag (SS)
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<blockquote data-quote="Mike Matteson" data-source="post: 2887888" data-attributes="member: 101791"><p>I know I have used H4350 in weather from over 100dr to -20, At yardage of out to 500yds. No noted different in impact either. Long before that I was using IMR powders. Weather only change 50dr at most, and below a primer out of the case. </p><p>I will say I do load hot. In my belted mag generally 5+ grains over manual call out. I stop at creator primes or just before that on my loads. No ejector marks either. I do a run up of powder in starting out with a new rifle. Increasing at the rate of about .5gr each time in a string of loads. I start out at low loads called out in the manuals and go up from there. I am very careful on adding addtional powder as I go. Not all want to cross the mark, and that fine by me. </p><p>Generally I have objective to hit with veloicty in the load I develp. I like most of my rifle to in the 3200 to 3300fps area. That way I don't have to think about my hold. Because they are all about the same drop per yard.</p></blockquote><p></p>
[QUOTE="Mike Matteson, post: 2887888, member: 101791"] I know I have used H4350 in weather from over 100dr to -20, At yardage of out to 500yds. No noted different in impact either. Long before that I was using IMR powders. Weather only change 50dr at most, and below a primer out of the case. I will say I do load hot. In my belted mag generally 5+ grains over manual call out. I stop at creator primes or just before that on my loads. No ejector marks either. I do a run up of powder in starting out with a new rifle. Increasing at the rate of about .5gr each time in a string of loads. I start out at low loads called out in the manuals and go up from there. I am very careful on adding addtional powder as I go. Not all want to cross the mark, and that fine by me. Generally I have objective to hit with veloicty in the load I develp. I like most of my rifle to in the 3200 to 3300fps area. That way I don't have to think about my hold. Because they are all about the same drop per yard. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 Sherman Shortmag (SS)
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