Quote:
Originally Posted by Gun 4 Fun
My bad, question not so long, answer is.
The guy was asking about Alliant Power Pistol, and Universal Clays data. He had read Mike V's article but it hadn't included those two for 240-250 grains swc's.
Pearce answered (abbrev here greatly for space) that 6 grains of PP will drive the Lyman 454424 250 gr swc to 838 fps in a 1955 S&W Target with 6.5" tube, and upping it to 6.8 provided 901 fps.The last load is getting close to +P levels (23,000 psi for those that don't know). his came out at roughly 280 grains. 6.8 gr of PP gave 885
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Yeah, I thought Venturino's article in #254 was a little weak on the 45 AR higher power level stuff in modern guns. As a practical observation, he usually is compared to Pearce.
I have tried the Power Pistol load Pearce mentioned and it is a humdinger in my 4" 625-8! Accuracy is superb, and I got right at 900fps. I have also loaded a comparable charge of Unique in Starline brass and a Speer 250 LSWC for a chrono'd avg 942fps in that gun. The 45 AR can get up and walk in the right gun, the operative term being the 'right gun' (note: the Unique load, although not specifically given, is over SAAMI spec in the 25kpsi range and should only be worked up to with caution in new Starline brass and exacting handloading techniques, and would only be suitable for recently made guns.)