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Rifles, Reloading, Optics, Equipment
Reloading
ES vs accuracy
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<blockquote data-quote="codyadams" data-source="post: 1929601" data-attributes="member: 87243"><p>I would venture to say that Alex Wheeler has likely forgotten more about precision long range shooting and rifles than most of us know. He is a solid resource for excellent information. Not saying it's bad to have very low e.s., but Alex knows very well what he is talking about as well.</p><p></p><p>3 shots tells you very little on e.s., I prefer to find a good seating depth, then find my max load while checking speed, then do a ladder test at 600+ yards, preferably through a flat spot from my velocity testing. The results at range tell me what I need to know about my velocity. After I find my final load, I shoot 10 rounds over the chornograph to get some solid numbers on my average velocity to put in my ballistics app. If my ladder test doesn't show me the results I want, or if my initial pressure test is all over the place with no consistency or flat spots, I usually try changing primers to get better results. My .260 AI with BR-4 primers and rl26 worked great with the 147 eld-m, however with the 156 eol, it had 50+ fps e.s., switched to the cci 450's and brought it down to high teens.</p><p></p><p>At this point, I would just run a ladder test in your situation, unless you already have what you would consider acceptable long range performance.</p></blockquote><p></p>
[QUOTE="codyadams, post: 1929601, member: 87243"] I would venture to say that Alex Wheeler has likely forgotten more about precision long range shooting and rifles than most of us know. He is a solid resource for excellent information. Not saying it's bad to have very low e.s., but Alex knows very well what he is talking about as well. 3 shots tells you very little on e.s., I prefer to find a good seating depth, then find my max load while checking speed, then do a ladder test at 600+ yards, preferably through a flat spot from my velocity testing. The results at range tell me what I need to know about my velocity. After I find my final load, I shoot 10 rounds over the chornograph to get some solid numbers on my average velocity to put in my ballistics app. If my ladder test doesn't show me the results I want, or if my initial pressure test is all over the place with no consistency or flat spots, I usually try changing primers to get better results. My .260 AI with BR-4 primers and rl26 worked great with the 147 eld-m, however with the 156 eol, it had 50+ fps e.s., switched to the cci 450's and brought it down to high teens. At this point, I would just run a ladder test in your situation, unless you already have what you would consider acceptable long range performance. [/QUOTE]
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ES vs accuracy
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