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Rifles, Reloading, Optics, Equipment
Reloading
do primers effect accuracy?
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<blockquote data-quote="johnnyk" data-source="post: 187583" data-attributes="member: 307"><p>diderr,</p><p> I have found different primers give you different accuracy levels with the same given bullet and powder charge. Looking back through my reloading journal I see that in July of 02 I was shooting the 160gn Sierra GK in my 7mmRM Sendero. The powder was RL19 and I tried both Remingtons 9.5M and CCI BR2's. I cleaned the barrel before each 3 3-shot test and never allowed the barrel to heat up. The outside temp was cooler than normal that day (I make note of temp/wind and other factors).</p><p> I was shooting 61/62/63 gn of powder with each primer. With the R9.5M my groups ran .9035/.6645/.9875 and with the BR2's they ran 1.220/1.115/1.320. While this is only a small sampling and may not be enough data for some, it is/was enough for me. Primers do make a difference. JohnnyK.</p></blockquote><p></p>
[QUOTE="johnnyk, post: 187583, member: 307"] diderr, I have found different primers give you different accuracy levels with the same given bullet and powder charge. Looking back through my reloading journal I see that in July of 02 I was shooting the 160gn Sierra GK in my 7mmRM Sendero. The powder was RL19 and I tried both Remingtons 9.5M and CCI BR2's. I cleaned the barrel before each 3 3-shot test and never allowed the barrel to heat up. The outside temp was cooler than normal that day (I make note of temp/wind and other factors). I was shooting 61/62/63 gn of powder with each primer. With the R9.5M my groups ran .9035/.6645/.9875 and with the BR2's they ran 1.220/1.115/1.320. While this is only a small sampling and may not be enough data for some, it is/was enough for me. Primers do make a difference. JohnnyK. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
do primers effect accuracy?
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