How much room for dialing below zero?
My scope is a bushnell match pro which has 18mils of elevation. Converted to MOA that is ~60.8. If I used a 30moa base that only leaves me 0.8MOA, or 0.24mils for dialing targets closer than my zero (50yds). Therfore a 30MOA scope cant is biased too far towards longer distances in my opinion. Does my math, and assumptions check out? Am I missing anything worth considering? I feel like a 25MOA base would be the sweet spot considering the range of adjustment in my scope. I don't see any options for this, I assume stacking a 15MOA base with 10MOA rings is the only way to achieve this but if anyone knows of another 25MOA solution for the CZ 457, I'm all ears.
Posted Dec 21, 2022, 1:56 PM UTC
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I would use the rail that gives me the most out of the scope for long range. I have only dialed down 0.75 MOA or 0.20 MIL in any rimfire competition having a 50 yd zero. My rule of thumb is what ever the overall elevation travel is in the scope get at least half that in a rail.
Ex = 85 MOA or 25 MIL scope is at least a 40 MOA rail
Same here, I've never had to dail below zero more than 2/10th for any shot. The targets are usually large enough that your 50-yard zero will hit fine anyway for anything closer. I always prefer more elevation, though, which is why I have 32 mills available in my scope.
I'm also running 60 moa between my base and rings.
Making 547 yard shots is a lot more fun than shooting under 50 yards, IMO.
Thank you both for the response. I've only shot one match, so my practical experience is limited. I suppose another way of looking at it is what do you do when you run out of adjustment. Would you rather hold over a long range target, or hold under a short range target. In that case I think it makes sense to favor the long range capability of the optic. As holding under at close range should be the easier thing to accomplish.
If you have a 50-yard zero, then at 25-33 yards, your hold is pretty much zero. At 34-45 yards, you're dailing around .2 mills. Unless you're shooting a sub inch target at that distance, not dialing will hit it fine.
The same thing goes for targets from 51-63 yards as well. Your hold is around .2 mills, so unless your target is sub-moa size, your zero will hit fine holding zero.