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Rifles, Reloading, Optics, Equipment
Reloading
260 rem load development
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<blockquote data-quote="codyadams" data-source="post: 1282121" data-attributes="member: 87243"><p>I would recommend starting within .010" of the lands, with my .260 AI and 140 vld hunting I started at .005" off, and didn't have to run the seating depth test, as I was getting sub bullet diameter groups. </p><p></p><p>I would also recommend the BR-2 primers, they dropped my E.S. from 25 fps to single digits, I also use H4831sc. My best load for my ackley improved is 47.8, but my max is 49.2 grains.</p><p></p><p>I see data for the 260 with 142's SMK's max at 48 grains in hogdens data, at 2747 with a 24" barrel, COL at 2.780". I know bergers data shows a max much lower than that, but just food for thought. Less bearing surface, 2 grains lighter, and depending on your throat you probably have much more room in your case than a 142 SMK seated to 2.780". Work up carefully and watch for pressure signs.</p></blockquote><p></p>
[QUOTE="codyadams, post: 1282121, member: 87243"] I would recommend starting within .010" of the lands, with my .260 AI and 140 vld hunting I started at .005" off, and didn't have to run the seating depth test, as I was getting sub bullet diameter groups. I would also recommend the BR-2 primers, they dropped my E.S. from 25 fps to single digits, I also use H4831sc. My best load for my ackley improved is 47.8, but my max is 49.2 grains. I see data for the 260 with 142's SMK's max at 48 grains in hogdens data, at 2747 with a 24" barrel, COL at 2.780". I know bergers data shows a max much lower than that, but just food for thought. Less bearing surface, 2 grains lighter, and depending on your throat you probably have much more room in your case than a 142 SMK seated to 2.780". Work up carefully and watch for pressure signs. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
260 rem load development
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