Ive shot a few Maxis made from lead that were harder than pure. They shot fine in my old LK93 with some moly lube and Liquid Alox mixed. I was even using upto 100gr charges of BH209 and a wad. Ive got a few hard cast 300gr 45s sized to fit my 45s that i will try sometime for a better review but if a properly sized sabotless jacketed bullet can shoot well, i don't see why a harder lead bullet with the correct charge/size cant give fairly good results too.
WW lead is roughly 11-12 BHN so it might just work depending on the gun and its type/depth of the rifling. Hornady makes some really cheap .454cal 255gr? bullets for cowboy action that are harder than pure. Those might be a cheap way to test the theory. IMO sizing and lube becomes more critical than it does with softer lead.
Last edited by Gm54-120; 03-17-2011 at 07:03 AM.