for cannon barrels? Just curious. Historically "bronze" was just copper and tin, but today we have gajillions of alloys: phosphor bronze (closest seeming to the old stuff), aluminum bronze, manganese bronze, silicon bronze. Sheesh! What would be used today in a cannon barrel? Also, if one were to use phosphor bronze, what ratios between copper and tin would be good (C51000 @ 95/5, C54200 @ 90/10, etc.)? :hmm: