Nikko Match Mounts Mk2
Nikko Match Mounts mk2 1"/25mm 9-13mm 3/8" Base Medium NSMM138M
Nikko Stirling Match Mounts mk2 1" Airgun .22 9-11mm 3/8" Base Medium NSMM138M - 13.8mm base to bottom of ring
Sale is for 2 - a pair - of mounts
Machined from Aircraft Aluminum Alloy with Twin screws top and bottom for secure scope and rail grip and no recoil or scope shift
- Base: Fits airgun and .22 rimfire type dovetail base rails of 9-11mm and 3/8" width. See http://www.tacticalscope.co.uk/blog/?p=50 if unsure how to determine what you have.
- Ring Diameter: 1" (25mm) tube scope
- Height: Medium - Distance from base of mount to bottom of ring (the saddle) is 13.8mm (0.53")
- Stop pin to ensure there is no recoil slip on the base
- High quality synthetic protective tape on rings inner surface to protect your scope.
- Allen key included
Calculating scope to rifle body clearance
The way you calculate the clearance is by halving the overall OUTSIDE diameter of your rifle scopes objective lens and then deducting half the rifle scopes body tube diameter.
For scopes with a 1" diameter body tube diameter this would mean deducting 12.7mm and 15mm for scopes with a 30mm diameter body tube.
Note we say OUTSIDE diameter - this means NOT the lens diameter, you need to measure the whole outer casing diameter.
The result gives you the minimum "saddle" dimension required - the measure from base of mount to bottom of the ring.
The amount the saddle dimension is greater than the figure you have calculated is the amount of clearance your scopes objective will be clear of your rifles body. The saddle on these mounts is 13.6mm
- A 44mm objective lens scope is measured and found to have an outer case measurement of 51mm.
- 51 divided by 2 = 25.5.
- 1" scope so deduct 12.7mm = 12.8mm
- So the mount must have a saddle measure (base of mount to bottom of the ring) greater than 12.8mm or else it will ground out on the rifle body.
Calculating your rifle scopes clearance in this way does assume your dovetail or base is not raised above or below your rifles barrel. Note some rifles with high or adjustable cheek pieces may require higher scope mounts or risers so that your eye is in line with the rifle scope and your head is kept in an upright comfortable position.