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The Basics, Starting Out
Load Development
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<blockquote data-quote="Coyoter" data-source="post: 51829" data-attributes="member: 236"><p>OK, the new 300 WBY barrel is going to be here in another 10 days or so, and Wyojeepeer and I are having a bit of a debate on the best way to develope a load.</p><p> First off, somewhere, he read that a good way to find a starting load is to shoot one shot @ (say) 78 grains, the next @ 79, the next @ 80... until they start to group. ie, the 80, 81, and 82 are in a fair group with the 79 and 83 out of it. Take the middle charge (81) and start fine tuning from there. Sound like it would work to you?</p><p> FYI, I'm planning on keeping close tabs on case web expansion, etc. in the process.</p><p> Next, from a thread on some board or another, I'm going to build 5 shot groups with .010" staggered seating depths using that (theoretical) 81 grain charge. Whichever of those works best, build another 5 groups staggered in .5 grain increments around the (81 grain?)charge used to find the seating depth.</p><p> I have it on mediocre authority that this method gets you to a sound load that will take lots of work to improve upon.</p><p> Yes, No, maybe?</p><p> Any recomendations on a better way?</p><p> Thanks, Coyoter</p></blockquote><p></p>
[QUOTE="Coyoter, post: 51829, member: 236"] OK, the new 300 WBY barrel is going to be here in another 10 days or so, and Wyojeepeer and I are having a bit of a debate on the best way to develope a load. First off, somewhere, he read that a good way to find a starting load is to shoot one shot @ (say) 78 grains, the next @ 79, the next @ 80... until they start to group. ie, the 80, 81, and 82 are in a fair group with the 79 and 83 out of it. Take the middle charge (81) and start fine tuning from there. Sound like it would work to you? FYI, I'm planning on keeping close tabs on case web expansion, etc. in the process. Next, from a thread on some board or another, I'm going to build 5 shot groups with .010" staggered seating depths using that (theoretical) 81 grain charge. Whichever of those works best, build another 5 groups staggered in .5 grain increments around the (81 grain?)charge used to find the seating depth. I have it on mediocre authority that this method gets you to a sound load that will take lots of work to improve upon. Yes, No, maybe? Any recomendations on a better way? Thanks, Coyoter [/QUOTE]
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