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Rifles, Reloading, Optics, Equipment
Reloading
Most efficient load development method
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<blockquote data-quote="royinidaho" data-source="post: 1003386" data-attributes="member: 2011"><p>I used to do ladders and stuff. Burns up too much powder and barrel life I figure.</p><p></p><p>I pick a powder, bullet and primer. None of these are a guess.</p><p></p><p>I then determine OAL to touch the rifling and set the seating die.</p><p></p><p>I then start towards the top of the suggested powder range and shoot ever increasing charge weights until I get pressure signs. Each chamber is different. Some times the sign is bolt lift, some times its extraction pressure and some times it the extractor mark.</p><p></p><p>Say that pressure point is 100 grains. I back off 2 grains and load 9 shots.</p><p></p><p>3 @ 96 gr, 1 @ 97, and 3 @ 98 and shot each load round robin fashion into 3 different targets. This will reveal the optimum charge weight. Usually, but not always this results in a good accurate hunting load.</p><p></p><p>If need be I then mess with seating depth.</p><p></p><p>Note that this procedure is used with fully custom rifles. Factory rifles take a ton more tweaking......</p></blockquote><p></p>
[QUOTE="royinidaho, post: 1003386, member: 2011"] I used to do ladders and stuff. Burns up too much powder and barrel life I figure. I pick a powder, bullet and primer. None of these are a guess. I then determine OAL to touch the rifling and set the seating die. I then start towards the top of the suggested powder range and shoot ever increasing charge weights until I get pressure signs. Each chamber is different. Some times the sign is bolt lift, some times its extraction pressure and some times it the extractor mark. Say that pressure point is 100 grains. I back off 2 grains and load 9 shots. 3 @ 96 gr, 1 @ 97, and 3 @ 98 and shot each load round robin fashion into 3 different targets. This will reveal the optimum charge weight. Usually, but not always this results in a good accurate hunting load. If need be I then mess with seating depth. Note that this procedure is used with fully custom rifles. Factory rifles take a ton more tweaking...... [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Most efficient load development method
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