Winelover, What powders did you work with?
Powders ranked from fast to slow:
IMR 4198
H 4895
N-135
AA 2495
AA4064
RL-15
N-140
Varget
IMR-4320
N-150
AA 4350
The slowest two (N-150 and AA 4350) gave the best groups.
Managed 1 7/8" MOA, for 5 shots with 27 grains of N-150, CCI LR, LC-08 brass and the NOE 200 (311365) Spitzer (heat treated alloy + CR lube). Twenty nine grains, opened the group up to 2 1/4" C-C.
With AA 4350, 36.5 grains, CCI
Mag LR primer, LC-05 brass, put ten shots in 2 1/8" at 100 yards. Also, heat treated alloy lubed with Carnuba Red. Took this combination up to 40 grains (1978 FPS, ES 101.5, SD 35.6) but obtained shotgun patterns. Also have targets using water dropped WW's, as well as, air cooled. Thirty five grains of AA 4350, CCI 200's, yielded 3/4" MOA for five shots with air cooled, but brass was very sooty. Water dropped, didn't do nearly as well.............. and was using LBT lube, rather than Carnuba Red.
BTW, I have my own backyard range with shooting bench about 20 yards from my reloading bench. Very convenient for doing ladder loads. Lab Radar was used for velocities, listed. I have a loose-leaf binder, almost three inches thick of saved targets, just for my AR-10..........