After a long hiatus without a 500, I just snagged a Lipseys BFR 5.75" Bisley! I had to sell my last 7.5" BFR before moving to New York in 2016 (.50 cal handguns were a felony) and regretted it since. When I retired and moved back to CO, I tried buying it back - no luck. It should be here Monday, and I'm so impatient I started putting loads together for it already.
I still have a pile of brass and boolits, so I got after it. I have a pretty good stock of Lee 440gr GC and my own design 550gr plain base boolit from mountain molds before he closed shop. Started with the 440gr over unique, starting at 15.5 grs.
My biggest issue is that my beloved IMR-4759 has long since been discontinued and was my go-to under the 550gr boolit. I recently read an article from John Ross talking about slower powders (rifle) in pistol cases, and snce I have 5 lbs of H335 which isnt too much slower than 4759 so I figured I'd give it a shot. I measured the volume under the 550 to fit 47.2 grs before it was compressed, so I started at 45grs and went up from there. Uncharted territory, so it should be fun!
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