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Got my dies from C&H-4D, beautiful pieces, used them to form from Star-line 50-90 Sharps. Naturally they make cases to spec, but fire-formed cases blow the shoulder forward & swell the base. I just don't full-length resize fired cases.

You'll never get the original 65 grn BP charge in a modern solid-head case; I use 50 grns 777 with no compression and 365-grain bullet: matches original performance of just under 1500 fps.

Like many (all?) Beaumonts, mine slugs 459 at the breech but 454 at the muzzle; tapered bores were common back then. Original bullets were hollow-base, to obturate well and permit squeeze-down through the barrel. Since I have more time than money, I drill out the base of a 405 grn/458 dia for 45-70 to get the hollow base & right weight, then size in a Lee resizer to 454. What a sweetheart shooter! Took a javelina at 200+ yards. I love it when the guy in the next lane asks, "What the hell is that?"
 
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