Mike, if you plan to run them in your Henry, I would advise to roll crimp them so you don't have bullet setback.

BTW, I ran to the range today with my new Christmas present that Santa brought me; a ProChrono Digital chronograph. I will be posting some data up later on when I get a chance. I shot the 180 grain MBC Strikers and the 140 grain Zingers through my 20" Rossi, using H110, Accurate #9 and IMR 4227 on the Strikers and the first 2 on the Zingers. With the Strikers, I got the best velocity with the A #9 loads and with the Zingers, I made some devastating loads with H110 that averaged over 1900 fps.