I shoot and reload a Sharps 1874 in /45-70 Gov. which I love. The .45-70 gov has multiple reloads from black powder to 2400. The working part (soft lead) is from 350 gr to 620 grains
. The bullet can be cast at home. The reload cost is about 12 cents to 22 cent a round. The round is slow and heavy which is simple: mass times speed. 
