Description

300 WM-300 Winchester Magnum brass for sale.

50 factory new PETERSON unprimed 300 Winchester Magnum brass cases, packaged from bulk.

All Peterson Cartridge casings in this bag have passed a 100% inspection for visual, structural and dimensional defects.  Casings are consistent in weight, perfectly annealed and finished.  A heavier case that rivals the quality of other named premium brass manufactures.

300 Win Mag released by Winchester in 1963, based on the 338 win Mag case.  Reloading the 300 Win Mag it is generally concluded that the best accuracy is achieved at near maximum charges.  Each rifle is it’s own rule so always begin load development at the lower end and work up from there.