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Rifles, Reloading, Optics, Equipment
Reloading
300 RUM Load development Qs
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<blockquote data-quote="jonnybullslayer" data-source="post: 1194992" data-attributes="member: 39229"><p>I've searched quite a bit for pet loads on the 300 RUM with 215 grain bergers before I built some rounds and headed out to the range. I decided to start at 88 grains of H1000 and increased by 1 grain increments up to 94 grains, loaded .015 off the lands. I had intended to run 3 separate ladder tests at 400 yards, but I was shooting under the tutelage of a long time shooter and he suggested we shoot groups at 100 yards.</p><p></p><p>I fully expected to see pressure signs before hitting 94 grains but I didn't. Is this normal?</p><p></p><p>My best vertical spread for a three shot group at 100 yards came at 94 grains (3134 fps ave) with an ES of 18 fps and although 93 grains (3111 fps ave) gave a slightly larger group, ES was 10 fps. </p><p></p><p>88 grains (2996 fps ave) had two shots touching and one flyer, but ES was 9 fps.</p><p></p><p>Where should I focus my fine tuning? I'm not seeing anyone sharing many loads in the mid-90's, but again I'm seeing very little pressure signs. I was going to try 5 rounds each of 93.5, 94, and 94.5. Or should I be looking at 87.5, 88, 88.5?</p><p></p><p>I'm a little hesitant to move forward.</p></blockquote><p></p>
[QUOTE="jonnybullslayer, post: 1194992, member: 39229"] I've searched quite a bit for pet loads on the 300 RUM with 215 grain bergers before I built some rounds and headed out to the range. I decided to start at 88 grains of H1000 and increased by 1 grain increments up to 94 grains, loaded .015 off the lands. I had intended to run 3 separate ladder tests at 400 yards, but I was shooting under the tutelage of a long time shooter and he suggested we shoot groups at 100 yards. I fully expected to see pressure signs before hitting 94 grains but I didn't. Is this normal? My best vertical spread for a three shot group at 100 yards came at 94 grains (3134 fps ave) with an ES of 18 fps and although 93 grains (3111 fps ave) gave a slightly larger group, ES was 10 fps. 88 grains (2996 fps ave) had two shots touching and one flyer, but ES was 9 fps. Where should I focus my fine tuning? I'm not seeing anyone sharing many loads in the mid-90's, but again I'm seeing very little pressure signs. I was going to try 5 rounds each of 93.5, 94, and 94.5. Or should I be looking at 87.5, 88, 88.5? I'm a little hesitant to move forward. [/QUOTE]
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300 RUM Load development Qs
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