My only experience on game with non-expanding cast lead bullets is with my Hawken cap-lock 50cal with 320gr bullets at 1200-1300fps mv. All elk hit had a complete pass through and ran approximately 30 yards falling stone dead. The spine hit ones fell immediately and died in 5 to 10 minutes.

The same exact pattern as the one's I shot with a 30-06 rifle, except those fell still alive after a 30 yard run.

I have full confidence in cast lead big bore handgun bullets launched at anything over 900fps.