the problem with acuracy is how the rifle is bedded, or not bedded for that matter. the only thing holding the barrel/upper part of the rifle in the stock is the trigger latch/catch thing. and the ultra light weight 55 gr. bullets. heavier bullets shoot flatter and more consistant, sometimes the 55 gr bullets fail to even stabilize at all.
im sure you fellas here are familiar with the
Rifle Accuracy Systems Inc Custom Accurate Rifles Barrel Conversions Ruger Mini Remington 700 7400 750 AR10 AR15 heavy barreling of mini-14 and mini-30's. also they offer 4 point machine hex nute bedding into the reciever, also they offer accuracy packages with barrels up to and exceding 1.15 inches OAD. they also have different gas blocks.
a rifle done up by these guys, for 'round $900.00 plus the cost of your mini-14, you will have the company gurantee you 1/4 M.O.A. mini-14 accuracy, depending on the package you get, all are as good a 1 M.O.A. at very least.
another thing, the mini-14 up until the 580xxx numbered guns, had barrels THINNER than a 10/22 standard .22lr?!?!?!?
now the 580xxx & up guns have a fat taper, and are as fat or a little more than a 10/22, but fat and heavy VS. light and whippy barrels is a personal chioce/prefference.
the heavy fat barrels are more accurate, but take A LOT longer to cool down after you ripp a big clip through them, and once they get hot they are off their mark pretty good,
light whippy barrel guns get hot much quicker, but also cool down much quicker, and are sooted to just dumping ammo like nuts over the heavy barrel.
light barrels you probably get bout 5 or so good shots before you shoudl let it cool back down for accuracy's sake, other than that i have heated MINI's up till cook off, and they still are with me and work fine.
heavy barrel, you will get probably a dozen or so great shot till you got to wait forever and a day for the barrel to cool down, for accuracy's sake.
my .02 cents, as a 2+decade Mini-14 user.
Ruger Mini 14 30 Rifles Barrel Conversions New Rifle Packages Accuracy Systems
PLEASE IF YOU OWN A MINI-14/30 YOU MUST CHECK THIS LINK OUT< PLEASE.
scroll down to mid page for pics. these are some of the most bad a$$ mini's you WILL EVER SEE. nothing from any manufacturer can compare to these mini's, no FN scar-16, no sig 556, nothing at all touches these.