The Big W has an impressive lineup of rifle cartridges to its credit, including such undeniable gems as the .270 Winchester, .308 Winchester, .243 Winchester, .300 Winchester Magnum and .338 Winchester Magnum. Until the advent of the WSM series of cartridges, the only Winchester case with a rebated rim was the .284 Winchester, released in 1963. The two initial factory loads for the .284 Winchester were a 125-grain bullet at an advertised velocity of 3200 fps, and a 150-grain bullet clocked at 2900 fps. While I haven’t spent a ton of time with the 284 Winchester, my experiences have been positive, if only at the shooting range. If you want to keep your 284 Winchester rifle well-fed, you’ll need to be able to handload the ammo.