When I first bought my 300 rum, a bdl, I played with the 180 SSt and RL 25. I got very good groups at 96 gr, rem brass, fed 215, OAl 3.600 When I shot very slowly letting the bbl cool after each shot, I shot as well as .25" 3 shot group at 100 yd. That said; this load was a little on the hot side for my tastes as I was getting speeds of 3390-3410. I didn't believe the SST was a tough enough bullet for my style of hunting so I pretty much abandoned the load. When I did work it up; it was in the hot summer months however so I doubt it would have shot so fast come Oct or Nov.