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Rifles, Reloading, Optics, Equipment
Reloading
Looking for load data for 30-378, Berger 230 OTM & H50BMG
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<blockquote data-quote="Lefty7mmstw" data-source="post: 711788" data-attributes="member: 48043"><p>With the 300 rum and 225 hornady we were running up to 102 grains on rl50 with a 225 hornady. I'd start at 100 grain with h50bmg and work to full pressure if you can't find data and you should land in the 3100 to 3150 fps range + -. It looks like the 30-378 is around 15% heavier charges than the 300 rum in the data I've perused. I've done similar work with I 5010 and wc872 in my 300 rum. The 50 bmg powders aren't that far apart speed wise unless they were meant for alternate loadings, so if you back off 10-15% and work in slowly you will get there.</p><p>The 215 m are the match variant of the 215.</p><p>I'd guess you will do better with h50bmg than h1000, but you could toss both loads together and let them fight it out.</p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 711788, member: 48043"] With the 300 rum and 225 hornady we were running up to 102 grains on rl50 with a 225 hornady. I'd start at 100 grain with h50bmg and work to full pressure if you can't find data and you should land in the 3100 to 3150 fps range + -. It looks like the 30-378 is around 15% heavier charges than the 300 rum in the data I've perused. I've done similar work with I 5010 and wc872 in my 300 rum. The 50 bmg powders aren't that far apart speed wise unless they were meant for alternate loadings, so if you back off 10-15% and work in slowly you will get there. The 215 m are the match variant of the 215. I'd guess you will do better with h50bmg than h1000, but you could toss both loads together and let them fight it out. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Looking for load data for 30-378, Berger 230 OTM & H50BMG
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