Congrats on choosing an excellent design! My mould drops these at 284 grs. from straight WW alloy.
For a general use load try 8.0 to 8.5 grs. of Unique or Universal and a std CCI primer. In my guns this gives 900-950 and very good accuracy. This can handle 95% of what I need from a handgun.
For a heavier Ruger type load try 18.5 grs. of 2400, 23.0 grs. of H-110, or 22.0 grs. of H-4227. I use magnum CCI primers with all of these. All of these should give you 1100 to 1200 fps and nice accuracy.
Best of luck and please load carefully!!!!!
Mark in GA
Ive found the H110 meters beautifully and is accurate in my Colt Anaconda and my Rossi mod 92. Both being 45 Colt. The load that works for me the best is H110 20 grains behind the 300 gr.
For my standard loads in my S&W mod 25s I use a 255 gr Saeco using 9.5 to 9. grains of Unique.
I've not found the 'dirt' from Unique to be a problem. I may clean my Smiths after every thousand or so rounds. I wipe off the exterior with a rag, before I put the handgun in its rug, but that's it.
I am using 25 grains of H110 behind the RCBS 270-SAA. Mine weigh 284 grains from the mould, this load has worked quite well for me. I should mention that I started at 23.5 grains, and worked up. I am shooting these from 3 different Rugers, A NM Blackhawk I have had for quite a while, a SS Bisley Blackhawk, and a Super Redhawk 454/45.
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