I load everything to book loads and dimensions. My load for the 175 gr Nosler Partition is 44grs of IMR4350 for about 2500fps (I don't use a chronograph) just load from the book. The Kudu don't seem to mind and I lose very little game. I try for an accurate load somewhere below max. Have been using IMR4350 and Nosler Partitions on almost everything I shoot for over 50 years with good success so why experiment. I'm too old fashioned and set in my ways I suppose. Recoil is zip even with the steel buttplate.