That's better Sunray! At least you're trying to provide answers with some substance now. Way to go buddy!

Yeah!
I built a .284 on a long action 700 and am using the same mag. The .284 cartridge, being a larger diameter than the Swede, works fairly well in that magazine but any smaller and you would have problems. The feed lips would have to be tweaked a little to keep the cartridge a bit lower. As it is, the rim of that .284 just
barely catches the rear of the mag.
I wouldn't hesitate to use it, just know that it'll require a little hand work, that's all.
Rooster