A buddy of mine has one, its a nice surplus shooter. i will say that in my experience firing 2 different ones, it seems that they may have a battle sight, the 2 i shot at 50 yds were shooting 12" high, but grouping, on one i drifted out the rear sight and remove the elevation guide then put the rear sight back in, this put it at and inche or 2 high at 50 yds. i have seen alot of nice scout scope mounts for them, no drill or tap setups, they replace the rear sight. i just put one on my k98, developed a load, and can hit a quarter at 50 yds all day. also, my experience with the surplus ammo hasnt been great, there rifles did better with factory! i hope that helps, i would grab it for 75!
the 6.5 works out to be a .268, legal to hunt with in ct anyway!
as for the mosin, i believe you are looking at a .30 cal bullet, case is a little shorter than on 06, itll drop deer as well! perhaps a little more knockdown power.
hope that helps!