Quote:
Originally Posted by Twoboxer
Yes, you can only use COL as a surrogate for residual case volume when the bullets are the same length and perhaps base profile.
Fortunately, a Speer 115gr GDHP @ factory spec is 0.560". That's a good enough match for Berrys (.556-.564) which was the OP's specific question, as well as Xtreme (0.553-0.557) and Precision Delta (.560-.564). According to Quickload, other brand name FMJ bullets are in that same ballpark too.
I suspect that's why Hodgdon can continue to list only the GDHP as the example of a copper surfaced bullet.
(I've never seen a 115gr LRN, but Hodgdon's 1.100" test COL has always made me curious. Anyone know the length of a typical LRN? Unless they are really short, that may help explain the lower powder charge range.)
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Stupid question, but where do you see both cast and jacketed data for
Same bullet listed together? I have a few manuals but generally use the data from the Hodgson website. For a 158 grain bullet and HP38, they only lost two bullets. A Hornady xtp and a cast LSWC. The Hornady has a range of 3.8 to 4.3. The cast is 3.1 to 3.8. I load my 158 grain swc plated xtreme bullet at 3.6 grains. Too light?