 The neck was deliberately moved forward to prevent chambering in a .270 Winchester rifle, as firing a .280 round in a .270 rifle could cause the projectile to get stuck in the barrel or rupture the barrel due to excessive pressure.Original loads were 125, 150 and 165 grain bullet weights.The .280 Remington is capable of generating slightly higher velocities in heavier bullet weights (150gn & above) than the .270 Winchester due to a marginally greater case capacity.