I've been shooting a Sig Stainless Target 5" 1911 off and on for a couple years. It's been throated for cast bullets. Using mostly Lee #68 and 200RF molds. I just picked up a 230 Truncated Cone mold to try. Cast a pile of them today with a soft 0.7% tin, 1.7% antimony alloy, 6 cavity mold rains bullets. Ran a few through the lube/sizer and made up a dummy round to check length. Set it at 1.25 to start, pulled the barrel and dropped it in to test. Plunks fine, actually .005 below flush. Round fits the magazine as well.
Question is, should I drop it back to 1.20 or so since the only data I've found for this bullet (Lyman #4) is for 1.17"? I've got it in my head to run this bullet for full power loads, and the 200 gr #68 for lighter paper loads. I've got HP-38, Universal, 800X, and Longshot on hand. I keep more of the Universal on hand since I load for 3 different 16 gauges. Any ideas as to length and load with this bullet?
