Totally impressed by my first go at PC. Never could get my 1894 Marlin (MG) to shoot well with cast without picking up considerable leading in the throat and first couple inches of the barrel. Tried all the 'standard' fixes - sizing to .433, 'hard alloy', different lubes, etc. - without finding true happiness. PC'd some some freshly-cast Lee 200 gr. RNFPs with HF Red, loaded 'em over 10 gr of Unique, and headed for the range. Right from the get-go, 2"-2 1/2" (iron sight) groups at 50 yds, which is pretty much same as I get with JBs (or the best of my lubed CB loads). After 50 rounds, ran a few dry patches through the barrel and bore looked like it had been scrubbed with Hoppe's #9.
Only question now is what to do with all those sized/lubed Lyman 429667s sitting on the shelf in my workshop?
Bill