Dove tail scope mounts

I'm looking for 30mm tube Dove tail scope mounts to go on an Air Arms Pro Sport I just bought and a question just occurred to me. Rifles like the TX200 and Pro Sport require Dove tail mounts and there are holes in rifle to accept a pin stop from the mount.

Do all Dove tail mounts have a pin stop integrated into them, because I'm not seeing any mention of it in the ad descriptions, so maybe its just a standard feature.

Thanks
 
"Trailryder42"I'm looking at the Sportsmatch Adjustable high 30mm dove tail mounts. It looks like they have about 2mm of adjustment. So if I raised the rear mount that 2mm, Is there a way or formula to determine how many mil difference in the reticle that would make at 100 meters?
If they are two piece mounts, it will depend on the distance between the mounts.

A mil means 1000 distance-units/subtension-units. Assuming that the mounts are spaced about 100mm apart, and raising the rear mount 2mm:

2mm/100mm x 1000 = 20 mils

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PS: A mil is an angle, not a linear measurement. It will be a 20 mil change at all distances, not just 100 meters