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Rifles, Reloading, Optics, Equipment
Reloading
Help with 300RUM 215 Berger and ES
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<blockquote data-quote="J E Custom" data-source="post: 1126823" data-attributes="member: 2736"><p>Basically, Low SDs and ESs have very little to do velocity, Low SDs means you have a good powder, primer and bullet weight combination (You get a very consistent Burn rate in that load). Note;</p><p>some times you can improve the SDs by going from a very hot primer to a primer with a little less heat. (Like the CCI 250 or the 9 1/2 magnum Remington)</p><p></p><p>what you are looking for is single digit SDs if you can achieve them. with lighter bullets it is harder to get there, but with heavy bullets it is not uncommon to get to 4 or 5 ft/sec SDs.</p><p></p><p>Work on the load it's self by changing Primers, bullet weights and powder brands. (Only change one at a time).</p><p></p><p>Once you get good SDs then work on accuracy by changing bullet types (Stay with the same weight)</p><p>then when you find the best bullet, start changing the seating depth (+ or -)to get the best accuracy</p><p></p><p>Hope this helps</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1126823, member: 2736"] Basically, Low SDs and ESs have very little to do velocity, Low SDs means you have a good powder, primer and bullet weight combination (You get a very consistent Burn rate in that load). Note; some times you can improve the SDs by going from a very hot primer to a primer with a little less heat. (Like the CCI 250 or the 9 1/2 magnum Remington) what you are looking for is single digit SDs if you can achieve them. with lighter bullets it is harder to get there, but with heavy bullets it is not uncommon to get to 4 or 5 ft/sec SDs. Work on the load it's self by changing Primers, bullet weights and powder brands. (Only change one at a time). Once you get good SDs then work on accuracy by changing bullet types (Stay with the same weight) then when you find the best bullet, start changing the seating depth (+ or -)to get the best accuracy Hope this helps J E CUSTOM [/QUOTE]
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Reloading
Help with 300RUM 215 Berger and ES
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