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Rifles, Reloading, Optics, Equipment
Reloading
N570, H1000 or Retumbo accuracy differences?
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<blockquote data-quote="Shane Lindsey" data-source="post: 2887577" data-attributes="member: 25831"><p>Not a PRC, but a 300 RUM with the 245 Berger EH. Don't be afraid to seat them deep. In my RUM I loaded to fit in an AI mag at 3.745" which jumped at .157" off the lands (like the Grand Canyon jump). Another was .98" jump. Even tried single feeding at .010" off and settled on the shortest even after going back to the Wyatt's box. Looks silly, not sexy, but it just works.</p><p></p><p>Have you got the group size you want with any powder yet? Not velocity/group size? I ask because Berger data was 2769 FPS/87.8gr N570. I get a little better than that at 2845 FPS with N570, but that is a RUM. Your PRC should be about there with +p.</p><p></p><p>I would drop down a bit with H1000. Or go to N570 and see how it does. I get great accuracy with it. Haven't tried H1000 in this barrel because the N570 did so well. I did get about 100+ FPS difference in a 300 WM FWIW.</p></blockquote><p></p>
[QUOTE="Shane Lindsey, post: 2887577, member: 25831"] Not a PRC, but a 300 RUM with the 245 Berger EH. Don't be afraid to seat them deep. In my RUM I loaded to fit in an AI mag at 3.745" which jumped at .157" off the lands (like the Grand Canyon jump). Another was .98" jump. Even tried single feeding at .010" off and settled on the shortest even after going back to the Wyatt's box. Looks silly, not sexy, but it just works. Have you got the group size you want with any powder yet? Not velocity/group size? I ask because Berger data was 2769 FPS/87.8gr N570. I get a little better than that at 2845 FPS with N570, but that is a RUM. Your PRC should be about there with +p. I would drop down a bit with H1000. Or go to N570 and see how it does. I get great accuracy with it. Haven't tried H1000 in this barrel because the N570 did so well. I did get about 100+ FPS difference in a 300 WM FWIW. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
N570, H1000 or Retumbo accuracy differences?
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