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The MVA Soule is a micrometer/vernier type sight. Windage is adjustable by using the knobs on the lower portion of the sight. Either knob may be used as they are connected to the windage screw. The mechanism is controlled by friction rings, there is no need for a mechanical lock. The elevation is controlled by the knob at the top of the staff assembly. Elevation is locked by slightly tightening the eyedisc. Always remember to unlock the eyedisc prior to making an elevation adjustment.


  If you are using a spirit level on your rifle, you may wish to time the rear sight in vertical plumb with the level bubble centered. This is only necessary if using a spirit level on your rifle. Without a level, your sight will be close enough without adjustment by simply placing the base on the tang and tightening the mounting screws.

Move the elevation slide up or down and only one of the marks in between will line up with a mark on the staff. The difference between .050" and .040" gives you .010" movement.

Place the rifle in a vise or other solid mount and position so the spirit level is on center. Place the sight base on the tang and tighten with the mounting screws provided. Use a small level designed to measure vertical plumb to check the level against the side of the sight staff. If rear sight does not read level, it will be necessary to place shims under one side of the sight base to establish verticle timing with the spirit level. Often no shimming is required however, MVA did not make your rifle and has no control over the alignment and level between your rifles tang to dovetail. For best accuracy, this condition should be checked during the mounting process.

Example: Move the elevation slide up or down until the "0" is inline with "1" on the staff. This is your 1" setting. Move the elevation slide up until the mark above the "0" lines up with a mark on the staff. This is the 1.01" setting, you have "come up" 1 MOA. The process continues until after five .010" movements the "0" mark will line up with a new mark on the staff. This would be your 1.050" setting. This vernier system allows a shooter to keep a log of sight settings for various ranges and return to a desired setting accurately. Disregard the "5" on the elevation slide. The "0" and "5" are always lined up at the same time. Start with "0" and count up the next four plain marks.

Once the MVA Soule sight is mounted on the rifle you may wish to sight in the rifle at mechanical zero. This will allow the optimum use of windage in the sight. The center mark on the Soule staff should be in line with the single line on the micrometer mainframe assembly, windage knob at zero. At this time you should shoot the rifle during a no-wind condition. Move the front sight .010" in the opposite direction of the desired impact change (moving front sight to the left will move your point of impact to the right).

Windage is adjusted by turning the knurled knobs on either side of the micrometer assembly. Markings on the face of the staff are spaced at .025" (2.5 MOA). Each mark on the calibrated windage knob will move the sight .005" (.5 MOA). The windage knob has five markings, 0 thru 4. Five movements of .005" equals .025", or one revolution of the windage knob. To move your point of impact to the right, turn the knob so that number value increases (0, 1, 2, 3, 4). To move the sight left, move the opposite direction (0, 4, 3, 2, 1).

Elevation markings on the MVA Soule sight are calibrated in .010" increments. A .010" movement is approximately 1 minute of angle on rifle with a 30 to 36 inch sight radius. The spacing of marks on the staff are .050" apart and labeled every .250" by a number (25, 50, 75, 1, etc.). The spacing on the elevation slide markings are .040". This means only the top and bottom marks on the elevation slide will be in line at the same time with a mark on the staff.

Vertical positioning, front to rear, is set at the factory. This is adjusted by the positioning of the base spring. Do not loosen the spring retaining screw or you will change the vertical position. On bases such as the Stevens 44.5 the spring will have to be removed to gain access to the mounting screws. On this type of base, first mount the base. Replace the spring with screw loose. Position the sight staff vertical and tighten the screw.



Each figure represents .010" of elevation slide travel. Staff markings are spaced .050"



 61 Andrea Drive    Belgrade, Montana 59714-8918    406-388-4027