You could also try those MMP sub bases found here
http://mmpsabots.com/store/50-cal-bb...idge-sub-base/
Semi swears by them, especially when using a full bore monolithic copper or brass bullet. That link is for .50 cal SB's but I assume they have .45 caliber ones as well.
Last edited by super_hunt54; 01-25-2016 at 11:52 AM.