300Winnie, how long is your barrel? That is screaming for a 200 grainer in a 300 Win. Thanks.

RickF,
I have a Browning Stainless Stalker (26" tube).

Try 72-73 gr (max load) of RL 22.

I putzed around w/ several powders before landing on IMR 7828 as the most accurate w/ 200 gr bullet in my 300 WM. Try it - you might like it. Mine likes about a grain less than most manuals list as maximum.