Daryl:

Thanks. I agree as stated in my question.

What I am asking is whether or not all factory CZ550's in 9.3x62 have the dovetail and notch.

I just had my rifle rebarreled and the barrel they used {said to be a standard 550 take off barrel in 9.3x62} has a barrel recoil lyg set in a deep dovetail under the chamber part of the barrel. I thought that odd and wondered if all 9.3x62 CZ550's have them.