I am working up loads for my Model 7 with a Hart barrel in 260 Rem.. I am getting very good results with a couple of different loads. For large deer I am loading 130 Nosler Accubonds with RL-19 powder. Another load that is shooting quite well in my gun consists of 120 Nosler BT and Hunter powder. I am using the Nosler #6 Manual as my guide. Both loads are listed in the manual and the powder chosen is shown as the most accurate powder for the bullet. The velocity of the 130 Accubonds is just over 2800 ft/sec and the 120 BT are moving at 2950 ft/sec. Also both loads are below the the max listed, 47 grains for RL-19 and 130 Accubond, and 48 grains for Hunter and 120 Bt.