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Old May 6, 2001, 04:52 PM   #2
Art Eatman
Staff Lead
Join Date: November 13, 1998
Location: Terlingua, TX; Thomasville, GA
Posts: 24,101
I looked in Mr. Speer's manual #13, and you're right on the money. If I wuz gonna make one of my famous sorta-scientific wild-eyed guesses, I'd say that since his load is for a jacketed bullet, and you're using cast lead bullets, you're getting the higher velocity. (Softer metal = less resistance in the barrel.) Off the cuff, the difference is a bit startling, but that's about the only reason I can think of.

Reading further in the book, I see a .38 Special listing for 4.7 grains of Unique giving an MV of 815 ft/sec, for a lead bullet. This is shown as a max load in the Special.

I dunno. Try 5.0 and see what happens.

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