WW, I can't recall the name of the manufacturer, but it's a bullet designed specifically for bowling pin shooting. With about 5.5gr of Unique, I get about 900fps from my 4" GP100. It's actually pretty soft shooting. I bought 250 about 3 years ago and have managed to shoot 100.
It's a DEWC hardcast bullet with one crimp grove about 1/4" from the end and two lube grooves. Search around here or at THR and you'll probably find pics from me and others.
Chris
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