I'm going to start casting for my 44 Magnum soon using the Lee 310 gc mold. I want to try out a 16:1 alloy like Keith developed the 44 with but using pewter instead of straight tin as it's dirt cheap and I already have a ton of it. Question is how long does it take to age soften it? My pewter ingots were all very hard when I cast them last week. How long will it take my bullets to soften. I think that 16:1 alloy should work good for my uses with the gas check and probably only 1300 fps or so.