338 rum 300 grain accubond

[str8meat]

Anyone try imr 8133 yet for this comb?

 

[Paladin300]

Haven't tried imr 8133 or the 300gr AB. But I loaded up 5 265gr ABLRs over 81grains of IMR 4350 the other day and shot this group in 28' degree weather. Hoping it holds true when it warms up. This will be my hunting round for bears in Alaska this coming summer. If it holds true. Velocity is around 2850 which is a little on the slow side but with groups like this I'll give up a few FPS. Group is in the top left corner. 5 shots, .029 inch group. I am pretty thrilled. I have had good results with R23 as well. Multiple sub 1/2 moa groups and super low SDs and ES. ABLRs seated .050 off the lands. R23 lower left corner. 3 shot group, 88 grains.
Would be interested in hearing how the 300ABs work out for you and what load you come up with. Good luck!