Last of the Short Vaquero droning...
Final Vaquero Working Loads
My goal here was the same as it always is, when developing loads for a fixed-sight revolver. One general shooting load, one 'working' load suitable for hunting game up to deer, and a heavy deep penetrating load for Big Angry Critters. Easy, right? I forgot to mention that they all need to shoot to the sights. I ironed out the first two today.
7.2 grains of W231/HP38 with a cast 250 grain RNFP has been my standard 45 Colt load for years. From the 4 5/8" Vaquero it produced an Average Velocity of 883 fps, and Extreme Spread of 41.13 fps and a Standard Deviation of 15.71 fps. Its POI was close enough to keep most shots on a paper bowl at 65 yards from a rest. Nothing left to do here but load lots of those.
The 13.0 grain HS6 load shot a little high with MO Bullet 255 SWC from this gun, so I backed it down to 12.5 grains. Average velocity was 984 fps but the Extreme Spread shot up to 128.6 fps and the Standard Deviation was 43.18. I was having a What The Hell moment until I ejected the brass and found four Starlines, an ancient R-P case and a WW case. DUMMY, make sure you're loading the same casings next tme!
So I loaded six of the 12.5 HS6 SWC's, all in Starline cases, took a good rest over the range bag and let them fly. At 65 yards it herded five them into 4", exactly at point of aim. This load is ready to hunt.
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Can't beat that for a compact, fixed-sight sixgun.
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