Originally Posted by BML
Tested the 123g AMAX that a buddy of mine gave me and shot .43 with 49g of H4831sc. Figured that was a good enough starting point to jump up to the 140g to test.
I loaded 3 each with 48g, 49g, and 50g. Haven't had time to test them, but in the meantime wondered if anyone has a load for their 6.5 that they have used with the 140 AMAX.
I have been doing some load development with the 140 AMAX in the 6.5x284 with H4831SC, H4350, H1000, RETUMBO, and RL17 in a 27" barrel.
So far (all things considered) H4350 has done the best. I have the lowest ES/SD with H4350 and 210M primers. I shot a group tonight right at 1-1/4" at 300 yards with 46.5 grains. 2891 FPS. I am going to proceed up to 48.0 grains. I don't see much point in going past 48. I am nearing peak velocity with H4350 at 46.5
Another good load was 50.5 of H4831SC which shot 1-5/8" at 300 yards. ES was a bit much with all the charges tested. 2840 FPS at 50.5 grains. I can easily work up to 52-53 grains.
RETUMBO has shown promise in accuracy and definately velocity. 59.0 shot just over 3100 without any pressure signs. 59.0 while not 'hot' is about all I can fit in the case and still seat bullets.
RL17 has also shown great accuracy potential with over 3100 FPS as well. I think 3100 FPS came around 50 or 51 grains. I am sure they will go faster but I am not willing to test this out on my rifle's freshly cut throat.
The verdict is still out with H1000.
Hope that helps!