Each has its advantages/disadvantages. 1 pc tends to be more ridgid and a simple ''ramp'' for added moa of elevation. But more cumbersome for loading, and unloading and cleaning your rifle, and add more wt. None of wich I see as a pro...
I only use 2 pc bases for the added room of loading and unloading. I havent had any problembs yet. But the 2 biggest hitters I have are the 300wby, and 338 win mag. I have leupold bases and rings on all my rifles from my 10/22 to the big stuff and all inbetween. with one exception, my 338 has 2 pc Burris rings and mounts (THEY WERE FREE, with the rifle. Cant beat that price
). I removed a solid 1 pc base from my 300 wby and the same with my 30-06 and put on 2 pc bases because of what I see as advantages for rifle maintenence and loading.
I am not bucking what the other guys are saying. Its obvious 1 pc mounts work well for them. They gave you the pro's of 1 pc. I gave some pro's of why I like the 2 pc. system. Personal preferance thing.
"Its not Rocket Surgery.....'
GOD,GUNS,&GUTTS MADE AMERICA, LETS KEEP ALL 3!winmag
"I have No idea why that cop made me ride in the back seat, when I Clearly called Shotgun!"