Thread: Time for a re crown?

I had a rifle bought from trademe, threaded with a can. Guy I bought it from said he'd taken it as a trade and hadn't fired it but the guy before him told him it grouped well.

Groups were all over the place, no consistency at all. Can was working loose and some shots were clipping, but even without can it was hopeless - similar badness to what yours is doing. Checked screws etc, turned out out someone had packed the rear scope ring up with cardboard! Took the cardboard out, tightened things up again. POI 18" low at 100m on max elevation. Signature-zee rings sorted that, sometimes it would group ok-ish and sometimes all over the show or right off the paper for no apparent reason.

Finally got a gunsmith to look at it, he cut off what was some rough as guts off-centre threading and recrowned it - straight away it shot half inch groups with 3 or 4 different loads.

If yours was shooting ok before it was threaded/crowned then I'd say thats the problem.