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Rifles, Reloading, Optics, Equipment
Reloading
300 wby help
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<blockquote data-quote="Tumbleweed" data-source="post: 1976924" data-attributes="member: 9281"><p>Lots of advice going on here...switch bullets, switch powders, hell maybe it's the primers! Lol! My first thought would be to rule out that scope with another known, solid scope if you haven't already. I'd see that as step 1. Secondly, these light barreled magnums are very whippy and need some finesse to tune. That sweet spot is also narrow. Gotta be patient. I start with a seating depth test from magazine box length on back 60-70 thousangths in .010" increments. Shoot 3 shot groups, find smallest group. Using the best seating depth, do a charge ladder test at 250-300 yards in 3/10 grain increments, find your flat spot. Now, massage your charge +/- 1/10 grain and seating depth +/- .005" to hone in on the sweet spot shooting groups of 3. If the first 2 rounds aren't what you're looking for, no need to shoot the 3rd. This "should" produce your best accuracy with the combo assuming there's nothing mechanical going on and reloading practices are good.</p></blockquote><p></p>
[QUOTE="Tumbleweed, post: 1976924, member: 9281"] Lots of advice going on here...switch bullets, switch powders, hell maybe it's the primers! Lol! My first thought would be to rule out that scope with another known, solid scope if you haven't already. I'd see that as step 1. Secondly, these light barreled magnums are very whippy and need some finesse to tune. That sweet spot is also narrow. Gotta be patient. I start with a seating depth test from magazine box length on back 60-70 thousangths in .010" increments. Shoot 3 shot groups, find smallest group. Using the best seating depth, do a charge ladder test at 250-300 yards in 3/10 grain increments, find your flat spot. Now, massage your charge +/- 1/10 grain and seating depth +/- .005" to hone in on the sweet spot shooting groups of 3. If the first 2 rounds aren't what you're looking for, no need to shoot the 3rd. This "should" produce your best accuracy with the combo assuming there's nothing mechanical going on and reloading practices are good. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
300 wby help
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