I finally had a chance at the range day to check velocities on some loads

with .45-70.  Breakdown:

Lyman 340-grain hollowpoint over 29.5 grains A5744 averaged 1654fps.

Had some Lee 405-grain round-nose flat points that I'd sized to .452 and paper patched to .459" over 29.0 A5744.  Average 1375fps.

Lyman 525-grain Postell over 24.0 A5744(yes, I like that powder) averaged right at 1200fps.

Wasn't able to run any black loads that day, hopefully in the future.