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Rifles, Reloading, Optics, Equipment
Reloading
.375 H&H Fireform to .375 WBY?
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<blockquote data-quote="Lefty7mmstw" data-source="post: 901293" data-attributes="member: 48043"><p>rl33 is a few % slower than retumbo, so you can take retumbo data, start at mid-load, and work to a few grains over the top. Talk to azshooter on this as he has worked more with rl33 than I have.</p><p>One instance I have used rl33 in is the 300rum with 225 grain hornady hpbt bullets. I was able to go to 95 grains rl33 at normal pressure getting 3000 fps using rp brass and a 215. Hodgdon is getting retumbo to 89 grains at 2900 fps with the 220 partition.</p></blockquote><p></p>
[QUOTE="Lefty7mmstw, post: 901293, member: 48043"] rl33 is a few % slower than retumbo, so you can take retumbo data, start at mid-load, and work to a few grains over the top. Talk to azshooter on this as he has worked more with rl33 than I have. One instance I have used rl33 in is the 300rum with 225 grain hornady hpbt bullets. I was able to go to 95 grains rl33 at normal pressure getting 3000 fps using rp brass and a 215. Hodgdon is getting retumbo to 89 grains at 2900 fps with the 220 partition. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
.375 H&H Fireform to .375 WBY?
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