I just got a short (19") .280 Rem barrel and looking for loads found a load for a 139 Grain cast GC bullet behind a starting load of 11.0 grains of PB with a max of 15.5 grains of PB. I also have about 1/2 a can of PB left on the shelf but no cast bullets in .284. My loading data for jacketed .280's does not list PB but lists 139 jacketed bullets. Can I substitute the jacketed bullet of the same weight (which I have on hand) behind the 11.0 grains of PB (which I have on hand) as a starting point? I was thinking of an easy shooting load and using up my PB at the same time, I would appreciate any input..Thanks....<><.... :grin: