Yea, I mostly shot 180gr. I had a very accurate 190gr matchking load I shot with retumbo. I had some 200gr loads, but liked the flat shooting 180gr loads.

If you want i can look up all my loads I worked up. I played around with the 300RUM for3 years and went thru 3 of them. I shot 150gr ballistic tips, 165gr ballistic tips, 165gr TSX, 180gr grand slams, 180gr partitions, 180gr accubonds, 180gr TSX, 180gr scirrocos, 190gr matchkings, 200gr matchkings, 200gr accubonds, and 200gr partitions. I tried several combos with IMR4350, IMR7828, H4831sc, RL22, RL25, H1000, and Norma MRP.

I mostly like to play with these guns, and shoot long range.