For my .45acp, I prefer a 225 grain truncated cone flat tip. They perform like a wadcutter and cycle like ball.
Yup. I don't cast my own, but I shoot 230gr truncated cone flat tips out of a couple 1911's, and they feed/function perfectly. I shoot them over 4.6 gr of Titegroup. (Book minimum is 4.2 gr and max is 4.8 gr.) They hit like a truck. In fact, I've always wanted to send a batch of these to someone who would test them for penetration and expansion--based on what they do to pins, I think they'd make a fine self-defense load.
EDITED TO ADD: To the OP: you shoot 10mm so here's a link to some 10mm bullets from the company I buy from. Maybe they might be helpful in selecting your own mold. Good luck!
http://www.pennbullets.com/10mm/10mm-caliber.html
