Still more accurate than I am, though I am not all that great with a rifle
. I was only able to do about 1.5MOA (consistently, though), but my wobble was absolutely the cause of that (I could see my crosshairs moving all over the target lol). Though, now it is a compact "stalking" gun so fine accuracy aren't concerns.
But, I don't know if I've read of anyone who did a "garage barrel chop" that actually saw a reduction in accuracy. Spend a little time being careful and truing it up with a file and you're good to go!