Thread: Lightweight Barrels and "walking"

Originally Posted by Friwi

Barrel walking can also be due to the front face of the receiver ( or barrel shoulder or sandwich recoil lug à la Remington) not being even on their surface.
As the barrel metal expend with heat it will start drifting due to the uneven pressure of the surfaces.

That's a very good point, The CZ 527 barrel has a tiny ridge on the face of the barrel and they headspace them by doing them up as tight as required with the "ridge" deforming against an internal collar in the reciever. Doing a proper barrel fit would probably improve things quite a bit.