RE: ID this scope mount please?
"I would not use that type of ring without first lapping the rings. The system is very strong. Tom."
Bingo!!!
Those are Leupoldbases. Judging from their rough look they are the made in China model. I install a lot of scopes for folks and have had nothing but trouble withmade in China rings andbases. It is possible to find Leupoldrings and bases that are made in the USA.
Made in China rings and bases:
Leupold-some
Simmons-all
Weaver-some