Re: browning abolt 300wsm
I'm using CCI magnum primers with 58.5 grns of H4350 pushing a Hornaday match 208 grn and getting decent (.875 @ 200 yds) results from it. One problem... it's in a Tikka stainless heavy barrel.
May not be a Browning, but it's a load that works for me. Might be worth a try.