for cheap and good
Most any "98 style" large ring military Mauser action...Have built one (all work done by me) on a '93(small ring), and am starting another on VZ-24 action. The VZ-24 is considered better by most, the one I've got has a REALLY smooth action. The Turks are good, but use a small ring thread on the barrel, so barrel selection is more limited, if you buy one already threaded. Since the .284 case has a .473 rebated rim(same as 8x57 or 30-06), no major modifications are needed to the bolt face, but because its "fatter" you might need to modify the magazine a little for proper feeding. Also, will probably only be able to get 4 in the mag, as opposed to usual 5. Not a big deal. many will tell you that you can buy a rifle for less than building up a Mauser, which is sorta true, but then its not a "custom" rifle, and a properly (re)built Mauser can do most anything as well or better than many high-dollar rifles. And if you do some or all of the work yourself, and "scrounge" parts from auction sites, etc. can build good one really cheap.