Welcome guncats,
Here's some answeres to your
?
*) who makes 6-hole scope mounts for Contender?
>>>SSK, EA Brown, Stratton Custom and Match Grade machine all make 6 screw bases (I like SSK's).... Bell m and probably others offer Weaver bases modified to the 6 hole pattern.<<<
*) what is the spacing between holes in a 6-hole?
>>> Same pattern as the 4 hole mounts, just an extra set of holes moved forward<<<
*) if I use a standard 4-hole base and have the barrel tap to 6-hole pattern, do I gain the option to mount the 4-hole base forward (leaving the rear two holes unused)? >>YES<<
*) For a 7.62x39, can I get away with using just the aluminum weaver base (4-hole)? or do I have to go to a one-piece ring set base...
>>>You should be just fine with the Weaver<<<
Who you gonna have build your new barrel?
Mark