Have decided to venture into the world of the 300 Blackout. Nosler and Hodgdon have published load data for bullets ranging from 110 grains to 230. I have lots of different weight bullets for .308. I would like to develop a load for a 190 gr SMK bullet using Winchester 296 powder. But no load data. So I was thinking I have data for the 150, 175, 180, and 208 grain bullets from Hodgdon reloading data. My question, Can I just interpolate the Hodgdon data info for a load ?

data for the 208gr bullet should be fine for same type bullets.sierra cup&core. my hodgen book gives 9.9gr of 296 and h110 for 220 sierra bthp. 1050 fps. and 29,700 cup. i would start with the load for the 220 gr. bullet.