accuarcy is like any iron sighted mbr of that time around 2-2.5 at 100yrds with surplus.
the front sight is tricky to adjust but if you read up on how it is supposed to be adjusted,,you can dial it in.
DO NOT sght it in at 100yrds or such.
read up(at perros,dr.zero's,mwdg3's) sites how to adjust the front sight,, then go tot he range.
set up at 25yrds,useing the 200M peep. fire away,,and adjust as need'd . doing this will zero your rifle at 200m.
in doing this i was able to maintain groups around 1inch and less from a rest,, no rest 100yrds im lookin at 4inchs and less. and at 450yrds, i can gong a 15x15 plate all day!
do your home work before you buy as posted visit peroos cetme rifles page and gunboards cetme forum for help.
these rifles are well worth the money IF you put a few minutes of elbow grease into them to correct what century hacked up on them.. 90% of the probelsm you will encounter will not be serious issues,,,, just take your time do the resarch andlearn the rifle.
as for hunting barns,,well..im sure you just have one big wealth of cetme knowledge sitting on your shoulders dont you!