AR Sponsor
Posted: 3/1/2016 4:08:35 PM EDT
|
Does anyone know what the clicks equal to at 100 yards for elevation and windage adjustments?
I can't find the info anywhere. |
|
Agree. Barrel length or rail length, depending on distance from rear aperture to front sight post affects what each click means. Only way to tell is to zero the sight and then make the clicks and measure. Please note that the Pro (not the long range version) is adjustable only for windage. I doubt you would be changing that once you are zeroed.
The Pro LR has an elevation wheel that roughly corresponds to elevation with numbers, 2,3,4,5 and 6 each representing meters at 200, 300, 400, 500, 600 with 50 meter stops in between, based on what I presume would be standard M855 ammo and a 100 meter zero, not sure. That is per Magpul's website. I do not have that version. Frankly, I use the non-elevation adjustable standard Pro and use the normal battle zero of 50 yards, returning to point of aim at about 250 yards with my loads. It is a backup sight for me and I can't really envision using it beyond 300 yards. |
|
We recommend sighting in at 200 meters for best results. With a 14.5" sight radius the MBUS Pro Front is approximately 1 MOA per click (1.131"/100m) elevation and the Rear is approx. 0.5 MOA per click (0.566"/100m) windage.
The 200-600m elevation adjustment wheel of the Pro LR Rear is a hybrid calibration taking into consideration CALIBERS (5.56 and 7.62 NATO), CARTRIDGES (M855, M193, Mk262, TSX 55gr, M80, M118LR), BULLET WEIGHTS (55-77gr for 5.56 and 147-175gr for 7.62), BARREL LENGTHS (14.5-20"), SIGHT RADIUS (14.5-20" for 5.56 and 18-20" for 7.62), POINT OF IMPACT DISCREPANCY (+2.5" to -5.0"), and assuming standard temperature and pressure. Clear as mud? 
|
|
Quoted:
Agree. Barrel length or rail length, depending on distance from rear aperture to front sight post affects what each click means. Only way to tell is to zero the sight and then make the clicks and measure. Please note that the Pro (not the long range version) is adjustable only for windage. I doubt you would be changing that once you are zeroed. The Pro LR has an elevation wheel that roughly corresponds to elevation with numbers, 2,3,4,5 and 6 each representing meters at 200, 300, 400, 500, 600 with 50 meter stops in between, based on what I presume would be standard M855 ammo and a 100 meter zero, not sure. That is per Magpul's website. I do not have that version. Frankly, I use the non-elevation adjustable standard Pro and use the normal battle zero of 50 yards, returning to point of aim at about 250 yards with my loads. It is a backup sight for me and I can't really envision using it beyond 300 yards. He probably has the front and rear sight |
|
Quoted:
We recommend sighting in at 200 meters for best results. With a 14.5" sight radius the MBUS Pro Front is approximately 1 MOA per click (1.131"/100m) elevation and the Rear is approx. 0.5 MOA per click (0.566"/100m) windage. The 200-600m elevation adjustment wheel of the Pro LR Rear is a hybrid calibration taking into consideration CALIBERS (5.56 and 7.62 NATO), CARTRIDGES (M855, M193, Mk262, TSX 55gr, M80, M118LR), BULLET WEIGHTS (55-77gr for 5.56 and 147-175gr for 7.62), BARREL LENGTHS (14.5-20"), SIGHT RADIUS (14.5-20" for 5.56 and 18-20" for 7.62), POINT OF IMPACT DISCREPANCY (+2.5" to -5.0"), and assuming standard temperature and pressure. Clear as mud?
So are you saying that if I use a sight radius anywhere in that spectrum, and a BC anywhere in the spectrum at a velocity anywhere in that spectrum, that out to the maximum distance on the "wheel", I will be no more than roughly 5" off of my POA? |
|
Quoted:
Quoted:
We recommend sighting in at 200 meters for best results. With a 14.5" sight radius the MBUS Pro Front is approximately 1 MOA per click (1.131"/100m) elevation and the Rear is approx. 0.5 MOA per click (0.566"/100m) windage. The 200-600m elevation adjustment wheel of the Pro LR Rear is a hybrid calibration taking into consideration CALIBERS (5.56 and 7.62 NATO), CARTRIDGES (M855, M193, Mk262, TSX 55gr, M80, M118LR), BULLET WEIGHTS (55-77gr for 5.56 and 147-175gr for 7.62), BARREL LENGTHS (14.5-20"), SIGHT RADIUS (14.5-20" for 5.56 and 18-20" for 7.62), POINT OF IMPACT DISCREPANCY (+2.5" to -5.0"), and assuming standard temperature and pressure. Clear as mud?
So are you saying that if I use a sight radius anywhere in that spectrum, and a BC anywhere in the spectrum at a velocity anywhere in that spectrum, that out to the maximum distance on the "wheel", I will be no more than roughly 5" off of my POA? Well it's hard to guarantee the accuracy of any particular gun... but considering nominal ranges of all the factors above in a standard temperature and pressure (STP) environment then the point of impact should land within +2.5" to -5.0" (a 7.5" range.) |
AR Sponsor