I've been working up a heavy load for the 4inch 45 Colt Redhawk. 2 weeks ago I shot 335gr and 360gr CP WFNGC's. I shot the 360gr with 19gr H110 at 1050fps for six rounds. About a 6+ inch group, pretty much all over the plate. 18gr is min, 21 is max load. Today I shot loads at 20 and 21gr. I ended up at 1155fps avg for 6 rounds with 21gr H110 and tightened up the group. Probably about the best I can shoot at this point anyway. I shot 5 and then the wind blew the paper plate off the board. I put the 6th one in the midst of the other 5 though as my buddy watched with binos. Anyway I am satisfied with this load. 360gr .452 bullet at 1155fps should put a hole through any brown fuzzy in Interior Alaska at self defense range. This will be the OH S%1T!! round for the 4 inch 45 Colt OH S%1T!! gun. Recoil was not unbearable or unmanageable I didn't think. Extraction was easy, primers look good. Here are the chrony numbers and a pic of the target. I think I'm going to really like this gun. Oh, and it's a joy to shoot with 260gr Keith style boolits with 8.5gr Unique. Avg 944fps. About a 4 inch group.
360gr CP WFNGC, 21gr H110, CCI 350 primer, new Starline brass sized with Lee Dies and trimmed to 1.280. Tight crimp with Lee Factory Crimp Die. I guess I need to buy a 360 LBT mould now