450 Mongo for Super Comanche
Just did a little workup on this wildcat for the Llama Super Comanche - single-shot .45 Colt / .410 shotshell. To be honest, I KNOW that this aint no T/C, and I am not going to be shooting benchrest with it - but a 6-ounce styrofoam coffee cup at 75 yards, offhand, in a 15 MPH wind ? Well, it happened ! Not as consistently as I'd like, but the misses were damn close, and the hits were hits.
Started off with some R-P 444 Marlin cases. Annealed the front half, then opened them up, first with an old RCBS 44 Mag/44 Spec. belling die - then repeated with a 460 S&W belling die. Belled JUST enough to start the bullet - 205 grain cast SWC.
Put Hornady's minimum charge of Bullseye in the case over a Remington 1-1/2 primer. Used one of the brass to cookie-cut a disc of styrofoam from a carry-out container, and forced this 'wad" down over the powder with a punch that was close to the I.D. of the brass. Set the boolit in place and seated it - NO CRIMP. First firing formed the front 1/2 of the brass to size.
Next round - punched out the primers with a Lee primer punch and then resized with the 460 die. Belled again with the 460 die, and put a near-top end load (Hornady book) of Unique in the case - used the same wadding procedure, and topped off with a 255 grain cast SWC. This time, after seating the boolit as usual, I used the 460 seater die to put a FIRM crimp on the round. The result was what I reported at the beginning of all of this - VERY much improved accuracy over the standard 45 Colt round, no powder in the bore, and no pressure signs. The brass is in the tumbler now - in a couple of hours, I'll set 'em back up again with those 255's - and shoot the eyes out of something ...:p
