Just did some load development for a friend using this bullet and the 300 rum. I found that 102.7 grains of Reloader 33 and this bullet seated at just a hair over factory OAL but still able to fill the internal mag, will put a ragged hole in a target at 100.
I did also shoot h100, retumbo, 7828ssc with all having good results. H1000 shot the best, but he had his mind made up with the 33.
Hope this helps