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Centerfire Rifles - Semiautomatic or Gas Operated Centerfire rifles, carbines and other gas operated rifles. |
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#1
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Red dot still zero after taking it off and putting it back on?
Will my red dot still be zeroed after I take it off and put back on my AR?
I'm talking about a standard A3 flat top with an Aimpoint PRO with a standard Aimpoint PRO mount. |
#3
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Not an Aimpoint, but same concept for the screw mount. My EOTech with standard style mount stays pretty close. Just make sure its snug with the same tighness and the same location, etc. I noticed a shift of maybe half an inch at 25 yds. If you're not shooting tiny bullseyes it's not too bad at all. I have no issues keeping it on steel at longer ranges when swapping between that and my larue quick detatch scope.
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#4
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With the QRP mount it will rezero in the same slot. When ever I mount an optic I push it forward to butt up against the forward rail to prevent movement from recoil.
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Can DI AR's run dirty? Palmetto State Armory Suppliers revealed "If it ain't stock, it don't belong on your Glock" |
#5
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I was wondering about this as well. I just purchased 2 Aimpoint Pro's and was curious about the mounting position on the AR. Seems everyone mounts them so the end of the Aimpoint stock mount is right at the edge of the delta ring which makes sense obviously but I have noticed that even on AR rifles that have the monolithic type rail (no delta ring) on top (which one of mine does) that people still mount the red dot sight so that the stock mount just matches up with the portion where the rail meets the upper receiver.
Is there a specific reason for this? Is it so you have a return to zero spot? I thought the farther out front on the rail the red dot goes the better overall sight picture you have? Seems almost all the pics that I see even with the T1 sights use that same reference point on the rifle rail though. |
#6
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The QRP2 mount is a very solid mount, that will repeat zero pretty darn close each time, provided you re-install it in the same location as before.
It's not as fancy or pretty looking as Larue, ADM, or bobro, but it works well. A much improved version of the original QRP mount. |
#7
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I have swapped out my Eotech and been almost zero. Just have to use the same T-markings and push forward when remounting /shrug.
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"Men sleep peacefully in their beds at night because rough men stand ready to do violence on their behalf." George Orwell http://www.AnySoldier.com |
#8
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Being that I play musical chairs with my optics A LOT and usually on rifles that have an absolute cowitness I can tell you that with the quality mounts the shift in zero is very minute at best if there at all. Not enough to worry about as far as practical shooting is concerned. If you want super accurate groups... well you got the wrong optic to begin with.
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#10
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Bobro and Larue make great Aimpoint mounts that return to zero within .5 moa. Sent from my PC36100 using Tapatalk 2 |
#11
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^^^ this. As stated above I can atest to the LaRue mounts. Worth every penny!
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#14
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Hmmm 4moa is quite a bit of movement at 100 meters. Did you remount your QRP back to the same slot and push forward? The breaking torque knobs is very consistant. I always click 3 times to insure it the same. I shot 4 3shot groups dismounted my sight and it rezeroed 3 times on 3 different rifles using 3 different QRP mounts. 2 new style, 1 older style and they rezeroed every time
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Can DI AR's run dirty? Palmetto State Armory Suppliers revealed "If it ain't stock, it don't belong on your Glock" |
#15
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It's well documented they have on average a 4 moa shift. Some mounts are much worse. Eotech has had problems with as much as 20 moa shift on factory mounts on the older models. If it weren't for this issue, these companies that make mounts wouldn't be able to sell their product. Like I said though, some stock mounts are better than others and don't have the POI shift problem, however its not the norm. Sent from my PC36100 using Tapatalk 2 |
#16
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__________________
Can DI AR's run dirty? Palmetto State Armory Suppliers revealed "If it ain't stock, it don't belong on your Glock" |
#17
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Sent from my PC36100 using Tapatalk 2 |
#19
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All that aside any links to the "Well documented links of a 4MOA shift on a QRP".??? or was that FUD??? If you did read something did that person have any expertise in this area or was it just some ACO "Arm Chair Operator" spreading FUD???
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Can DI AR's run dirty? Palmetto State Armory Suppliers revealed "If it ain't stock, it don't belong on your Glock" |
#20
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Just to be clear 4moa at 100 meters is a 4" movement, so if you where using a Aimpoint Pro with a 2moa dot 1/3 or absolute co-witness and dismounted and remounted it you will see the dot moved 2 widths up/down/left or right. You can easily see this movement just by using irons dismounting your rds and remount it. You should loose your 1/3 or absolute co-witness with you irons sights which I didn't find with my Aimpoint with a (1)QRP and (2) QRP mounts on (2) 1913 Picatinny A3 flat top upper and a KNS RASII rail.
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Can DI AR's run dirty? Palmetto State Armory Suppliers revealed "If it ain't stock, it don't belong on your Glock" |
#21
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Better edit your post before the LaRue fanboys claim there's no way that's possible.
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#22
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Probably depends on the mount you're using. I have no experience with the one you listed.
The LaRue mount I have on one of my AR uppers will return to zero, within a minute of angle. Once it was zeroed for the load I settled on, it was removed and reattached several times over the course of a few months, mainly for storage or transport of the upper. Always returned close enough to zero that I don't really notice it. Other factors like amount of barrel fouling, ambient temperature, barrel temperature, etc. will affect POI as well so it may be hard to isolate POI shift unless you run a test and try to minimize outside variables. This may be a waste of time with a red dot, which isn't going to give you precision anyways. |
#23
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There is a lot of misconception here about what return to zero means. Like I said earlier, the Larue has about a half moa shift on average. The QRP, while still a good mount, is a bit more. On my phone, so not gonna link anything. Google is your friend.
Sent from my PC36100 using Tapatalk 2 |
#24
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I'm on my computer and googled "QRP problem, will not hold zero, looses zero, etc" and found nothing. Unless there is a lot of "well documented 4moa shift" I have to call your claims.....FUD
__________________
Can DI AR's run dirty? Palmetto State Armory Suppliers revealed "If it ain't stock, it don't belong on your Glock" |
#25
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Sigh, its not a problem, its just the design of these mounts. Also consider that you are shooting probably 3-4 moa ammo, out of a 1-2 moa rifle using a 2-4 moa red dot. Lots of room for error and POI shifts are inevitable. Fact is the Larue and Bobro mounts are proven to hold zero better. If they didn't, they probably wouldn't sell mounts.
Sent from my PC36100 using Tapatalk 2 |
#26
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Depends on the scope and mount. Accucam type mounts should be right on.
Mine is. With an Aimpoint Comp2 I use a GG&G QD Accucam cantilever on my AR. I take it off and put it on every time I shoot and haven't needed to re-zero since day one. And that's been many times over the last few years. Plus I have it co-witnessed with my irons so if it's off I'll know right away Not sure about the stock Aimpoint mounts, I hear they are good if you are up close but can be off a little at longer ranges when you put it back on, YMMV
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#27
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Quote:
Still with no proof of your post it's still
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Can DI AR's run dirty? Palmetto State Armory Suppliers revealed "If it ain't stock, it don't belong on your Glock" |
#29
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I tested the EXPS QD mount once and it had a 1MOA deviation at 100yd so well within the acceptable range. For scopes, I don't remove them and tighten them so you can't remove them without tools. I used to think that I could do the QD thing since I was using LaRue and ADM levers but I saw for myself how it affected the group size.
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#30
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There is pleny of info/video that Larue scope mounts retain their zero when remounted. That said IMHO I would gladly trade my QRP for a Larue anyday but only for the lighter weight and no snag profile. I haven't tested a Larue mount so for me to post which is better would be FUD.
__________________
Can DI AR's run dirty? Palmetto State Armory Suppliers revealed "If it ain't stock, it don't belong on your Glock" |
#31
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Too many hobbies, Too little time. Mind you, I'm 5'7", 180, with a visible Ab... |
#32
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Yup guess Im OCD on fact vs ficton and on Kool Aide drinkers LOL..
__________________
Can DI AR's run dirty? Palmetto State Armory Suppliers revealed "If it ain't stock, it don't belong on your Glock" |
#33
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I have swapped optics on my POF 415 with an Aimpoint Comp ML3 in a LaRue mount. Every time it has been within 1/2MOA when set in the same rail slot and pushed forward in that slot then snugged down with the lever. I always make sure to move the mount forward so it will not shift due to recoil.
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#34
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I have swapped optics on my POF 415 with an Aimpoint Comp ML3 in a LaRue mount. Every time it has been within 1/2MOA when set in the same rail slot and pushed forward in that slot then snugged down with the lever. I always make sure to move the mount forward so it will not shift due to recoil.
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