i left the factory tikka rings on my t3 .i did change the screws. one thng i like about the tikka grooved receiver is that when using a longer scope you can space the rings way apart . i've always thought that te father apart your rings are the stronger your mount will be.if i were going to change rings i would never use those god awlful thick ass dnz rings. i think they are the ugliest thing ever made.
