Yotesmoker, The newer "tactical" Mini's are not so bad accuracy wise.
I have a friend (in the Marines) who recently bought one and personally witnessed him shooting 3 rnd groups @ 100 yds which you could cover up with a dime.
If you choose to buy an older model, and wish the kind of accuracy described in the previous posts, then make sure you buy a late series, say 197-xxxxx made after Rugers tooling was surely worn out, then use ammo say 69 gr, which the rate of twist will not stabilize, and add a Butler Creek flexable synthetic folding stock, that the action is sure to wobble in and you can expect similar results.
I have early Mini's 181, 182, and 183 series, always use wooden stocks which the action bites into firmly, only 55gr. ammo and get similar accuracy, as the newer 5XXX models made after Ruger re-newed their tooling. Not as good as the new Mini target models, but minute of Coyote @ 300 yds. Can't speak to the Mini 30, I have never seen one, but the 7.62X39 round is very close to a 30-30 in ballistics, which to me, means a 150 yd. rifle.
STW