Does anyone have any loads or suggestions of loads for an overbore cartrige like a WSM .300 for low vel, or even subsonic cast bullit loads. Just want to shoot the weed burner in the off season without burning up the barrel or setting my pasture afire. If this is impractical, then Id hope youd tell me. rogn--- The .309 mould Ive got is a Lyman in abt 168gr pointed bullit, the mould is from the early '60s