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Rifles, Reloading, Optics, Equipment
Reloading
Can primers reduce E.S.?
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<blockquote data-quote="wc872" data-source="post: 874525" data-attributes="member: 5923"><p>Primers can absolutely change ES. Sometimes not in a good way. In my load development routine I get the best load. For me that is the smallest group & hopefully closest to the point of aim. No real scientific reasoning just I feel better if two different loads have the same group measurement I use the one that is closest to the point of aim. Once I have achieved this I load up more of that load changing ONLY the brand of primer. I load as many different primers that I can get my hands on. I label the targets & shoot the different loads round robin at the longest distance that I have available. I keep the load that puts the holes in the target closest together. I have had a .308 Win 190 Berger VLD load that I was pretty happy with using Fed 210M primers. This load has an ES of 13 fps for 20 shots. I changed to a Rem 9 1/2 primer & the 20 shot ES dropped to 6 fps. At that point I figure I am done. While I feel that there is a small chance I could come up with slightly better load. I think that would be worth about as much as pickin' fly **** from pepper, you can do it but there ain't much future in it.</p><p>Every one of my firearms is WAY! more accurate than I am so from the beginning I am the weak link in the chain.</p><p>After all the technology & ballistic program fiddlin' it bolis down to how close the holes in the paper are.</p><p>Semper Fi</p></blockquote><p></p>
[QUOTE="wc872, post: 874525, member: 5923"] Primers can absolutely change ES. Sometimes not in a good way. In my load development routine I get the best load. For me that is the smallest group & hopefully closest to the point of aim. No real scientific reasoning just I feel better if two different loads have the same group measurement I use the one that is closest to the point of aim. Once I have achieved this I load up more of that load changing ONLY the brand of primer. I load as many different primers that I can get my hands on. I label the targets & shoot the different loads round robin at the longest distance that I have available. I keep the load that puts the holes in the target closest together. I have had a .308 Win 190 Berger VLD load that I was pretty happy with using Fed 210M primers. This load has an ES of 13 fps for 20 shots. I changed to a Rem 9 1/2 primer & the 20 shot ES dropped to 6 fps. At that point I figure I am done. While I feel that there is a small chance I could come up with slightly better load. I think that would be worth about as much as pickin' fly **** from pepper, you can do it but there ain't much future in it. Every one of my firearms is WAY! more accurate than I am so from the beginning I am the weak link in the chain. After all the technology & ballistic program fiddlin' it bolis down to how close the holes in the paper are. Semper Fi [/QUOTE]
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Can primers reduce E.S.?
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