I have Russian, Chineese, Romanian, Albanian, and Yugo SKSs sitting in storage.
The Yugo looked like the best bet, as the bore is not Chrome lined and looks like new.
I followed the instructions on the intnernet on how to do a trigger job on an SKS. That worked out.
I followed the instruction on the internet on how to glass bed an SKS. That looks nice.
I got a cast steel Choate SKS scope mount, followed the instructions and drilled and tapping into the receiver. It makes a nice solid mount.
I put on my Leupold 40X scope I use for testing rifles.
I hand loaded some very concentric 7.62x39mm ammo.
I went to the range and got 6.0 moa.
I would point out that the same shooter, scope, and techniques with a surplus Mauser have produce 0.4 moa in 257Roberts Ackley Improved.
I was beginning to suspect that the bolt, bolt carrier, and gas pistol, all being off center, are starting to move before the bullet exits.
I turned off the gas [a Yugo grenade launch feature], so it fires as a repeater, and not semi auto.
Still 6.0 moa with the SKS.
My AR-15 are semi auto and have no trouble averaging 1.4 moa.
What does it all mean?
I wasted my time trying to turn a sow's ear into a silk purse, ....or I am just too dumb to accurize an SKS.