The 7.62 x 39 is a easy cartridge to load for I had full intentions of reloading for my SKS rifles from day one. I read all the stories on the net about how inaccurate these rifle were suppose to be 4" to 6" groups at 100 yds. were with surplus or Russian and commercial ammo but I'm not everyone else and they don't shoot my rifles I wanted to find out for myself.
Since I've loaded for nearly 30 years now and reload for everything I shoot it was no problem to pick up a set of Lee dies,a couple hundred Win. and Prvi case at the local gun shop and some .310 dia. bullets. Nobody around here even had an SKS when I bought mine so when I went to the local gun shop to pick up some components I hit the mother load I ended up getting my dies,cases and bullets for about half the cost they are now. I also swapped out lots of range brass for X39 brass nobody was using. I'm also on about 15 different boards so I find good deals on things I need cheap.
Anyways an SKS rifle in good to excellent condition is not inherently an inaccurate rifle the majority of the issues are with the shooter and the ammo used in the rifle or both,I don't care how good of a shot you are you put crap through your rifle your get crap results. Granted all SKS rifle are not in the best condition but both of mine I would classify as excellent,my Yugo is a refurb be has a new barrel and my Chinese /26\ I bought NIB I don't know if the triggers are bad I have many different weapons for many different countries all with there own individual trigger pulls so I just learn to shot them as is.
I will say one thing for the SKS the front sight sucks it pretty much fills up the rear sight notch.it's good enough for minute of man or paper plate shooting but that can be easily fixed with the addition of a $5 Techsight target post,if you want to shoot small you have to be able to aim small. That the only modification I've seen fit to have to make to improve accuracy right off the bat. Don't get me wrong I shoot steel case ammo like everyone else tried them all and found few that are really accurate in either rifle,Golden Tiger is the best I have come across but it's not even that great and varies from lot to lot. The steel case ammo I has stashed away is main for last ditch use when nothing else is available.
Here is my batch cost to reload X39 using Win. cases,Wolf Primers,Reloader #7 and Hornady FMJ or SP .310 dia. bullets I bought it bulk. I save my FMJ,SP and V-MAX bullets for more serious work and shoot mainly cast bullets for plinking and small game shooting although I would suspect a 170 gr. cast lead bullet would do sufficient damage at 2K fps.
FMJ & SP loads
Cast plinker/small game loads gas checked 170 gr. cast bullet,Wolf primer,12.5 grs. Alliant 2400 Win. case MV 1450+ fps.
Cast load with 15.0 grs. Alliant 2400 MV 1950+ fps.
I live in the states so my cost and availability of components may not be as readily available to my brothers in Canada,but you can improve on the accuracy nonetheless if thats what your after.