- 30mm Diameter Body Tube
- Height adjustable saddle from 21-22.5mm
- MOA adjustable upto 50 MOA
- Weaver/picatinny bases
- Suit scopes upto around 60mm lens (see clearance guide below)
To adjust elevation, loosen locking screws (A) on front and rear mounts. Turning the adjuster screw (B) clockwise on either mount will increase the angle by 4 MOA (minutes of angle) per 1/4 turn. The maximum adjustment is 3 turns (50 MOA). These figures are approximate and based on a mount spacing of 80mm. Re-tighten locking screws (A) FIRMLY
2 PIECE ADJUSTABLE
A = 21-22.5mm saddle (Height from where the ring base touches rail to bottom of scope ring)
B = 21mm long
Weight = 134g
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 30mm diameter body tube diameter this would mean deducting 15mm.
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 21mm at lowest adjustment
So in this example, we have 21mm to use, so have a minimum clearance of 1mm
- A 60mm objective lens scope is measured and found to have an outer case measurement of 70mm.
- 70 divided by 2 = 35
- 30mm tube scope so deduct 15mm = 20mm
- So the mount must have a measure (bottom of mount to bottom of the ring) greater than 20mm or else it will ground out on the rifle body.
Calculating your rifle scopes clearance in this way assumes the base is a regular flat base. 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.