I have several '284' based calibers including the original. That one is on a FN SPR action(Winchester short action). The only thing needed for the Winny actions is their WSM mag box, follower, and shorten the bolt stop. If it is a CRF a little work to the blade ejector is also necessary, but easily done. What does this get you?, 4 rounds in the mag, 3.050 OAL in the mag, and feeds slick as snot with no issues. The only negative is the action itself is heavier than a short 700, but if you use the PTG aliminum bottom metal that is minimized to some degree. Makes a hell of a nice rifle, and I personally like the 284. I have a twin to that one in 25-284, and that is a real sweetheart too, prefer that if I'm hunting deer on down.