Hello Guys,I have a 284 short action.I could not get it to feed reliably using the factory mag(308)
I used a wsm mag box and it was better but I did not trust it 100% Occasionaly all the rounds would pop out or jam in the mag and not feed any.I bought a center feed mag and follower from Fred,Welded some tabs on the mag so it resembled the factory mag.This made it a bit longer than the factory mag but the oal of the cartridge is over 2.9 easy.I had to modify the mag opening slightly with a file and a hacksaw blade for the mag slots Took about a half hour taking my time.It holds 3 rounds
with one in the chamber.it looks like it is supposed to be like that and it feeds flawlessly.I have not
used a chrono on any loads yet but max loads are not showing any pressure signs. good luck!