I've found them to be pretty accurate....more so than the 44's or 38's I've had. Still not as good as the 91/30, but every rifle is different.
$149 seems a bit high, but not too bad if the condition is good. You don't have to pay shipping and you do get to see it face to face as opposed to pics only on the internet.
If yoiu have 7.62x54 ammo, get it. If you think it's $20 too much or whatever, big deal, if you want it, get it. I guess I'm trying to say "just get it"
Once you have it, then the board members can help with bullet selection, loads, etc. Some of the SP ammo out there is junk