I have a Shilen 26", 1-8 barrel with SAAMI chamber coming and need starting load data using H4350 powder with new Peterson large primer brass and the Hornady 147M bullet. I realize every barrel is different, but can't find any basic starting powder weights to start my load development for this bullet. Does anyone have experience with this combination? I haven't used this bullet before and H4350 is the only powder I have on hand.