Made it out today to pop off a few rounds, I was kind of surprised at the results. I started off with the A-Max and Mag Pro, 5 shot groups of 68.5 grains from .000 to a .040 jump. The best group was 1.250" at 100. This combination just isn't gonna work, I'll play with some other powders later. Next round was the 140 Nosler Custom Competition and 56.0 grains of H4350. At .000, I had a pretty good group going except that it was on two different backstands.....recoil moved me onto the other target lol. At .010 Jump, I put 5 rounds in a nice, tight .455" group. .020 jump opened up a bit to .735" but if I throw out one flier, it's a .375" group. As I worked my way out to .040 jump, the groups started to open up again, larger with each jump. I stopped shooting at that point, because I decided I'm done with load development until I get a chronograph. I ordered a Magnetospeed when i got home, it'll be here next Monday. That'll give me some time to work up some more loads for it.