I bought a new CZ550 9.3x62 with a factory threaded barrel
It sat in the gun safe for couple years waiting for a suppressor
I got the suppressor, took it to the range and got wild groups, like 16”
I switched scopes and ammo - same
I brought it to the gunsmith, he Went thru the gun, redid the scope rings and put his precision scope on it
Bore sighted it, shot it with and without the suppressor
Same irregular shooting, luck to hit a 2’x2’ target
He looked thru the barrel with a borescope, it looks like a new rifle, the inside of the suppressor looks fine too
We have a call into CZ
The gun smith doesn’t know what to do next
Any ideas ?
