Just took a nice 8 point buck with my trusty $179, 12 ga NEF Slug Hunter, using the .737 RB. The load consists of 40 gr of Blue Dot + BPGS seal + 1/2" hard cardboard + 1/2" soft fiber wad + .737 Lyman RB, teflon tape wrapped and roll crimped in a 3" Fiocchi hull. I am going to try powder coating next. I used to use the 2 3/4" hull, but the components fit better in the 3". I could probably go up to 45 gr of powder, but why? A RB weight of almost 600 grains, @ 1300 fps, will get any game's attention, and as a bonus, you get a nice pyrotechnic display in low light from the Blue Dot. There is no worry about slugs tumbling, skirts collapsing, petals shearing, or erratic accuracy. Shot after shot is right there with the RB. I zero 2" high at 50 yards, so I am good point blank, out to about 100 yards, with a center hold, although I never had to shoot that far yet. This is the 17th deer I have taken with this gun and load. I just can't see how anyone could ask for anything more effective. I have the Lee Key Drive mold, the Lyman forster mold, and the Rapine Flying Trashcan mold. They all are fun to play with, but the RB beats them all for consistency. Recoil is up there, but with heavy clothing on, and the excitement of the hunt, it is not even noticed.