I just startes reloading 6 months ago for my 300 rsaum. I used 66.8 gr imr 4350 and 190 berger vld's. prints .5 groups @ 100 yards. I was very happy with that as it was my third load with these materials. i am keeping that load for the bigger stuff. I bought a lb of rl-19 with 150 gr sierra...
I shoot a rem 700 300 saum. it is awesome. 1/2 moa. but I suggest reloading as it brings the cost way down!!!! and you can shoot what ever you want from 130"s for varment or 190 bergers wich I like for deer. I started with a 30.06 way back when. the .300 saum does have a kick so start out with...