FWIW, swapping from BR4's to 450's woke my h4895 load up considerably. I have not tested them in this setup with the 8208 load, iirc.I’m using 450’s in my BRA, it seems to shoot exactly the same with 7 1/2’s as well.
I realize this thread is specifically about a 6BR but the BR and Grendel are very similar and much of what works in one, works in the other. Just know that the BR is a couple of grains more capacity.
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