I've tried a couple of loads in the past in order to approximate .303 Savage ballistics, they are: (1) 30.5gr/IMR4895/CCI/Fed/180RN Hornady/1905fps (very consistent out of a 20" BBL) (2) 31.0gr/IMR3031/CCI/Fed/180RN Hornady/2085fps (I believe this was first published by Sam Fadala). Neither load showed excessive signs of pressure in my 336T, but use caution, especially with the IMR3031 load (I also had good accuracy with 29.0gr of IMR3031). I am going to try some 180gr cast (GC's), which I think I can get higher velocities without higher pressures if they are accurate and my lead is sufficiently hard to prevent leading.