I bought a pair of the weaver #45 bases but didn't need them. The grand slam "High" rings worked out perfectly. The objective bell is 1/8" above the barrel. Didn't bother to check the 45's, so don't know how well they fit. OH, and the rifle,,,,looks like it's going to be a shooter. After breaking it down, tightening the loose screws on the bases, sanding out the barrel channel(was almost touching on one side), checked to see that the accutrigger was set to the minimum pull(it was), lubed the bolt, etc, etc. Found out my laser bore sighter won't fit in the .172 barrel. Bore sighted it the old way(through the barrel), the first shot was 1" low, and 1" right. Never been that lucky before. Tweaked it a little at 50 yds, and then the first 3 groups of 3 shots were under an inch. Then the wind picked up, and I quit. Wind really moves this little pill around. Just thought I'd post on the bases in case it might help someone else.
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