Looking for loads for a 280 Remington. Seems to me like I should be able to load it with as much Hodgdon H-380 as my 30-06 with a 150 Sierra BTSP. However the data from Hodgdon shows 59 grains of H-380 for a muzzle velocity of 3005 FPS for the 30-06. It has no data for the 280 Rem. in the 150 gr bullet. My Sierra manual shows 51.8 Gr of H-380 to be the max with a 150 gr bullet and my old Lyman manual shows it to be 52 grains. I'd like to squeeze as much velocity as possible out of it because I hunt the wide open plains of Oklahoma for whitetail and long shots are common. Some day I might re-chamber it for the 280 AI but for now I'll work with what I have (or will soon have...) I know there's lots of other powders to choose from but the H-380 shoots great in my 22-250, 7mm-08, & 30-06 and I have a lot of it already. Thanks!!