newbie aimpoint question

[truckie453]

Hey all,

sorry for the newbie question:

I have a “new to me” aimpoint M2 and I was wondering if there is a way to find the factory zero on the windage and elevation knobs. I guess I am asking how to find the midpoint (click wise) of the adjustment turrets, I don’t want to over-rotate the adjustment knobs and do damage… and I want to have a good starting point when sighting in.

thanks,
Vinny

[Abraxas]

Just sight it in to your irons (assuming you have them) then confirm at the range.

[Donbeeler49]

I bought the same exact scope from a friend and had no problems with adjustment to my rifle. Just take your time and don’t force anything and you should be fine. After first mounting mine it was way, way high but it re-adjusted without difficulty. Good luck!

[truckie453]

Thanks for the info guys…

[shootist1]

A good way to start is to actually bore sight first. Remove the bolt and look through the bore, then adjust the optic to match what you see through the barrel. Any reasonable rest will do - sandbags at the range or even across the back of your easy chair looking at a spot on the back fence. The longer the distance, the better.

This should at least get you on paper at 50 Yds, if not 100. If in doubt, start at 25 Yds and work out from there. The rifle should shoot a little low at 25 Yds considering the optic is ~2.5" above the bore. And if bore sighting at short distance this should be considered as well.

[rob_s]

@truckie453

Hey all,

sorry for the newbie question:

I have a “new to me” aimpoint M2 and I was wondering if there is a way to find the factory zero on the windage and elevation knobs. I guess I am asking how to find the midpoint (click wise) of the adjustment turrets, I don’t want to over-rotate the adjustment knobs and do damage… and I want to have a good starting point when sighting in.

thanks,
Vinny

It sounds like you’re trying to find the mechanical zero; the point at which the vertical and horizontal adjustments are exactly centered. while that’s not a bad starting place it really offers no advantage over starting with wherever it is now and just zeroing it to your gun. Unless the previous owner had a major mounting problem and had excessive adjustment you’ll likely find that it’s at least on paper at 25 yards, and even more likely within a couple of inches. Get on paper at 25 and get it very roughly zeroed, then move the target out to 50 to “zero” and find your initial intersection, then (range permitting) take it out to 200 to get your true zero.

[truckie453]

@shootist1

A good way to start is to actually bore sight first. Remove the bolt and look through the bore, then adjust the optic to match what you see through the barrel. Any reasonable rest will do - sandbags at the range or even across the back of your easy chair looking at a spot on the back fence. The longer the distance, the better.

This should at least get you on paper at 50 Yds, if not 100. If in doubt, start at 25 Yds and work out from there. The rifle should shoot a little low at 25 Yds considering the optic is ~2.5" above the bore. And if bore sighting at short distance this should be considered as well.

Awesome tip. Thanks.

[truckie453]

@rob_s

It sounds like you’re trying to find the mechanical zero; the point at which the vertical and horizontal adjustments are exactly centered. while that’s not a bad starting place it really offers no advantage over starting with wherever it is now and just zeroing it to your gun. Unless the previous owner had a major mounting problem and had excessive adjustment you’ll likely find that it’s at least on paper at 25 yards, and even more likely within a couple of inches. Get on paper at 25 and get it very roughly zeroed, then move the target out to 50 to “zero” and find your initial intersection, then (range permitting) take it out to 200 to get your true zero.

Mechanical zero, that is what I was looking to get. It is good to know that I don’t necessarily need to start from there. thanks.