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Posted: 11/14/2005 5:32:54 PM EDT
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How far off have yours been out of the box? Mounted directly to the rail on my A3 upper (Bushmaster), my first shots were clear off the top of the target about 9-10 inches above center. With each click being 1/2 MOA, I lost track of how many it took to get to center, something like 2 1/2 -3 full turns. Windage was much closer and only needed a few clicks to get to center. Is the amount of eleveation adjustment I had normal? (Edit: I just read about the Larue mount in the above thread. Would this mount have made a difference?) |
| Mine was way off when I mounted it too. Elevation was way high and I can't remember where the windage was. I had my BUIS sighted in so I just adjusted according to that. A little fine tuning and I haven't had a single problem since, it holds its zero perfectly. As long as there is room for adjustment I certainly wouldn't worry about it being dead on out of the box. YMMV |
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Here's a trick of the trade that I learned after zeroing 100+ guys/gals with red dots and BUIS. Zero the BUIS first (cowitness) then turn on the red dot (C-Mores, Aimpoints, EOTechs) and adjust the dot to the top of the front sight post looking through the BUIS. Then fold down the BUIS and focus on the dot and do not try to fire lining up the dot and front sight. That's a common mistake for first time users. This will put you within a few clicks either way. Saves time and ammo. (C-Mores are the worst out of the box by hitting the dirt 15 feet in front of a prone shooter at 25m). CD |
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Combat_Diver, Great point, and I do every time. Its much easier for those of us who have been using irons to dial it in correctly, then simply wind it over for the optic. When I've zeroing an Eotech on something like the MP5, it always takes longer. Irons first, optic second. |
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Looks as though my situation is not too far from normal. For reference, I was at 25 yds. As of now, I have no BUIS, as I just got the thing and am in the 'playing with it' mode. Just pulled the handle off, dropped on the Eotech and experimented. One of these days I'll be looking for input on the BUIS. Honestly, I will probably pull off the Eotech for now, as I would like to become more proficient with the iron sights and have alot of work to do using them. I gotta get this thing outside and see how things shape up at 100 yds. This indoor stuff has me feeling all couped up. (I am interested, though, how repeatable the Eotech will be after it has been dismounted / mounted) Thanks for all the input, gentlemen. |
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A big +1 to Combat_Diver's post, that's exactly how I dialed in my EOTech when I first mounted it. I'm not sure why anyone would expect to be able to mount a sight and have it zeroed right out of the box.  Some folks might get lucky but 99.99% of the time this will be something the user will have to do manually.The EOTech is suppose to be +/- 1MOA after re-mounting. I've been able to get a pretty consistant return to zero using the the following procedure. 1. Make note of what rail address you use and always use the same one when mounting your sight. 2. Put the sight on the rail and push it forward as far you can and then tighten down the thumb screw. 3. Tighten the thumb screw hand tight and then use a coin to give it an extra 1/2 turn. 4. If your thumb screw loosens up then use blue Loc-Tite. I know EOTech does not recommend this but it works! The sight will still be easily removable with a coin and you can be 100% sure it woun't loosen up during while you're shooting. Here's a few tips on using the sight. 1. Adjust the brightness setting! Most new users have the brightness up too high and this causes the reticle to bloom and look distorted. 2. Focus on the target not the reticle. 3. The 65 MOA ring is for CQB so it does not matter if it looks a bit fuzzy. In fact think of it a ghost ring, place it on the target and press the trigger. 4. Use the 1 MOA center dot when precision shooting is required. 5. At longer ranges turning down the brightness will help make the 1 MOA dot even finer and easier to use for smaller targets. |
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http://i11.photobucket.com/albums/a170/tnorris7/Oly.jpg 25 yard sight in, just out of the box and mounted on an Oly .45 upper. First target top left, then top right, then bottom. |
Again, your experience is the exception not the rule. I wonder how that same sight would shoot if it were mounted to 5.56 upper and the user was trying to dial it in for a 50 yard zero? |
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