Corrected.Quote:
Originally Posted by gun71530
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Corrected.Quote:
Originally Posted by gun71530
Sounds like he gave second hand experiences of actual failures, he "implied" that he didn't have any issues (first hand) when he said his EO Tech was "babied" (there by stating without saying it, that his EO Tech never had any failures)…Quote:
Originally Posted by Wake27
Wishy washy… :rolleyes:
Quote:
Originally Posted by lethal dose
I have had a personal 552 Rev F that I got used in 2004(ish) have batteries leak when it went unused for about 6 months. I replaced the battery cap and scrubbed the sight. It works fine. It saw steady use of about 1k rounds per month for a several years before it leaked. I'm sure it would have leaked had it never been used. That has to be a circuitry or battery issue.
My other 552 and XPS have had minimal use, but not any problems in years.
I have seen several 553 with issues. Some will turn on and flicker off after being jolted (bumped, GPMG burst) and flicker back on when tapped again. One just won't wake up after going to sleep. These just get turned in.
That being said I have used 553s on GPMGs for an excess of 10k rounds each with no issues.
I feel much more confident in the 552 and have used it on GPMGs, 5.56 carbines, and various HK SMGs with less issues than the 553. Ordering the replacement battery contacts (dog-bone shaped) from EOTech or now Brownell's solves the issue of the individual round contacts falling out after high round counts. The transverse models solve that issue, and I love them.
I'm sure people think I'm and Aimpoint hater, but I'm not. I have owned numerous, and still do. I used to be a huge EOTech hater after my personal one tried to rot itself from the inside. I got over it though and realized they both have their place. NO doubt about it, the Aimpoint has better durability and battery life. The reticle is also a one trick pony. Though possible, it's silly to try and range with the dot. One can use the EOTech reticle for rough ranging much more easily. The original circle-dot can serve for multiple holds to deal with HOB offset. Every time I put a magnifier behind an Aimpoint I see a long punctuation mark, not a dot. EOTech reticle always looks as it should. That could be a problem with my eyes, but that brings us back to the sliding scale. If I need a dot, and I need removable magnifier, the EOTech is the only way to go for me, vs that guy who can only have one sight and one battery per decade. His only option is a Comp4.
Please delete
Own an EOTech 557 ran fine for about 150 rounds or so. Didn't use it much because I just didn't really like it as much as my Aimpoints and Scopes. Took it out of the safe one day. It was mounted to a Ruger SR556 which I just don't shoot much. Prepared the rifle to go shooting and checked the EOTech. The reticle was dim and I thought It might be because of batteries. Replaced the bats with some new Energizer Lithium. Still dim.
I called EOTech a couple weeks later and they said send it in mark repair cost $0. When I got it back it worked fine, I guess they replaced the electronics. Now the EOTech sits in a box. No more EOTechs for me. I only want sights that DO NOT FAIL while sitting in a safe.
There is little advantage for me in using the EOTech vs. Aimpoint. I don't like magnifiers either, although I own both an Aimpoint and EOTech magnifier, because I don't like the eye relief, weight, flip mechanisms (even LaRue), or the image through a magnifier. I just grab a rifle with a 1-4x scope if I want magnification.
Finally, I've heard carping about the Trijicon SRS, but I like it very much. It is sensitive to the brightness level you select, but the field of view and the shape of the dot is perfect for me. So I now have two.
I've had issue with the older Eotechs on my fighting carbines, but no issues with the newer EXPS line. So far so good.
Sent from my piece of s**t phone using Tapatalk2 (which can be equally unreliable when coupled with a junk phone)
It does not have a Tritium back up right? Its electrical or nothing correct?Quote:
Originally Posted by ScottsBad
My POI zero shifted after I left my EXPS3-4 unit out in my cold unheated and non air conditioned attached garage this past summera and this last winter.
Before this year I kept my EXPS3-4 inside the house in my bedroom. So I never noticed this problem in the past year or so before this fall. I kept it out in the garage inside a transportable rubber maid storage container because I was going shooting a lot more this year and wanted it near the truck for easier loading and unloading. The problem is that although I took my AR15 and the EOTech HWS with me during each trip to the range I didn't really use them until about a week ago. I was mostly shooting my two new pistols at the 25 yard range instead. But I took all my new guns to the range each time. It was sort of a ritual to load everything up that I thought I might use. I can use the exercise too.
Anyway the last two times out to the rifle range I went to the 200 yard range and shott my Ambush Firearms AR15 using various sized bullets. I'm still testing this gun to see what ammo is prefers. And I have two optics systems for this gun. The EXPS3-4 and a Nikon M223 4x16x42 with 600 BDC scope with AO adjustment knob.
The Ambush Firearms has a 12" long Modular float rail (Modular Float Rail 12.0) that attaches to the upper receiver and covers the 18" long barrel. . And the gun's receiver has a rail on it too. But the area where the upper receiver and the Free Float Modular Barrel Shroud meet is problematic when trying to install things on the rail. This area doesn't have the cross grooves and the scope has to be attached to the rail either before this section or the front part of the scope base has to completely straddle this area in order for the scope base to fit onto the rail squarely and flush. IF not the POI is way off target.. IE the gun will shoot over the top of the target. I found this out the hard way. I have a Magpul MBusd back up sight attached on the very back end of the rail and this takes up some valuable rail space. This caused me to move the RRA one piece scope base more towards the end of the barrel than without the Magpul MBus back up sight on the rail. I finally got the Nikon zeroed in by moving the RRA scope base (one piece unit) forward so that the base sits on the rail squarely and fits right down into all the groves. This changes my shooting position as I have to collapse the stock a bit more to move my shooting eye forward. No big deal so far. And I like the idea of having the Magpul MBus Back up sights mounted on the rail at all time. (Front and Back Magpul MBus Sights on the rail) I had probably zeroed the scope/rifle with the Magpul MBus off the rail and the scope mounted at the very back end of the rail. Then when I added the Magpul Mbush on the back of the rail and move the RRA base/Nikon Scope forward it moved the POI higher than before. Once I figured out what was wrong I corrected this scope mount problem by moving it forward a bit and then zeroed the scope/rifle combo again and all was OK. I just have to remember to put the scope on the rail in the same spot each time. Now back to the EOTECH stuff.
Now the EOTech that I have came in the HHS 1 system which contains the G33 magnifier along with the EXPS3-4 unit. I bought mine from www.SWFA.com Online store. The purchase date was 1/20/14. Amazon has something to do with this too according to my paper work. The entire cost was right at $1005 including tax and shipping. EOTech offered a $60 rebate at the time and after a long time period and lots of delays I finally got the $60 rebate check in the mailbox. But I had to fight to get it as it was not forthcoming and it was a long drawn out process to finally get the rebate money.
The last two times out at the range I noticed that my EOTECH was making me shoot high over the top of the target at 200 yards. . I was about 7" or 8" high from the 2" diameter bulls eye on the 17" diameter Shoot N C type targets at 200 yards. Like I said I've been shooting my pistols most of the time since I got my Walther's PPQ M2 pistol back in Nov of 2013. So the EOTECH and the AR have been put into active storage for the most part.
A couple of weeks ago I finally decided to check out the Ambush Firearms AR15 after getting some newer bullets. I found some 5.56 M855 ammo on sale at the gun store and bough a box of 150 rounds cheap. I noticed that these were 62 gr FMJ type bullets M855 Green Tips. And since my Ambush Firearms AR15 has a 18" long Cold Hammer Forged Barrel with a 1:7 twist rate it's said to shoot heavier and longer bullets better.
I had been shooting Hornady .223 Rem 55 gr V-Max Bullets in the past. And the optics/rifle was zeroed with these bullets. These and the Remington Accu-tip bullets in 223 cal and 55 gr size. I've heard that these are basically the same bullets. They are both made by the same company but with different labels and boxes used. So I read. That may be wrong as I don't know for sure who makes them. But they are both 223 cal and have the plastic tip. The Hornady's use the red plastic colored tip and the Remington use the tan colored plastic tips.
In fact the M855 bullet was designed to shoot out of a 20 long barrel with a 1:7 twist rate. So I figured that I had hit a home run with this box of ammo. I did some reading about the M855 bullets on the web at Wikipedia. https://en.wikipedia.org/wiki/5.56%C3%9745mm_NATO
When I went to the range I found that when I put the EXPS 3-4 and the G33 on the rail and started to shoot at the 25 meter range that I was hitting the bulls eye (2" diameter orange circle on the large Shoot N C target) but it was in the lower left part of the 2" diameter bulls eye. But still it was on target and the precision of all three rounds was good. Two were touching each other with the other about 1/8" away from the first two. It was around 70 deg F outside but a little windy and overcast. I was still happy with my EOTECH HWS at this time. Then I moved down to the 200 yard range. Now I take the EOTECH stuff off the rail when I move from one place to the next except while out hunting. It makes it easier knowing that the expensive optics are packed back inside their foam lined protective case when I'm moving them around. I keep the AR15 in a soft case and if I kept the optics on the rifle and moved it around inside a soft case I feared that it might get knocked around on the rifle so I remove them before putting the rifle inside the soft carrying case. Even though the soft case is padded it's not a protective as a hard plastic case with padding.
When I got to the 200 yard range I put the EOTech system back on the rail and setup to shoot. I was shooting off a solid wooden bench at the range so that's not a problem. It's built rock solid and on a concrete pad. And I was using a Caldwell Tack Driver Shooting Bag with a Caldwell rear smaller bag for supporting the back end of the AR15..
Now I'm going to take the Lead Sled DFT out next time I get out to the 200 yard range and see if that helps with the shooting. But this time I didn't use it even though I had it in the truck with me.
I had two boxes of Hornady Superformance Match 223 75 gr. BTHP bullets. Not one of these hit the target this day. I suspected later that the zero has shifted by 8" high and that was why I could not hit the 17" Shoot N C target at 200 yard distance with the EOTECH HHS 1 system mounted on the Ambush Firearms AR15 rifle.
I had some American Eagle 5.56 55 gr. FMJ bullets as well as the 5.56 62gr M855 bullets. While shooting I got the spotting scope/tripod out and would take a look to see where or if I hit the 17" diameter large Shoot N C target at 200 yard down range. I finally saw that I was shooting high and made some downward adjustments on the EXPS3-4. Now each click on the windage and elevation of the EXPS3-4 is suppose to be 0.5 MOA according to the manual that came with my EOTech HHS 1 System. Note: the new online EOTech manual added the word "approximate" in front of the 0.5 MOA statement about the windage and elevation adjustments on the EXPS3-4 HWS. This was after the reports came out that the weapon was losing zero by up to 4 MOA due to exposure to extreme cold and heat. The specs in my January 2011 Operator's Manual for the EXPS3 HWS says -40 to 120 Deg F or -40 to 60 deg C operation range. This is the problem! The current online EXPS3 manual at EOTECH.com has removed the temperature range from the stats on these units as of yesterday.
I read recently within the last week that the Crane Naval Surface Warfare People have found that the EOTech systems shift Zero by up to 4 MOA when exposed to high or low or both extreme ambient temperatures. This can cause a shift of 4 MOA in the EXPS3-4 zero point. And this is exactly what I am finding in my EXPS3-4 EOTech.
I found that my shots were about 7" to 8" high when using the EOTech HHS 1 system at 200 yards. Well if 1 MOA at 100 yards is approx. 1 inch and at 200 yards the 2 MOA arc intersects the arc circle by about 2" then four MOA at 200 yards is about 8". BINGO! It all makes sense to me now. After being out in the hot garage this past summer and in the same garage during the cold winter the EOTech was finally exposed to extreme heat and cold over the past year when I was not using it. If I had keep this unit inside like I did when I first got it I may have never noticed this problem. And I must admit that I was thinking about the Warning that I've been reading about online from at least two other forums dealing with AR15. AR15.com and another forum about M4 carbines.
While still at the 200 yard range I adjusted the wind-age and the elevation to correct the zero and after many shots and further readjustments I finally got the unit back on target and started hitting the bulls eye. But by this time the range was closing. So I need to return to the range and double check my findings. I also noticed that the distinct clicking noise on the dials was not present on one of them. One dial would make a very distinct clicking noise when I turned it in either direction. But the other dial was not doing this. The dial moved but I could not fell or near the distinct clicking noise anymore. It was soft of soft. I don't know how else to describe it. For this reason alone I may send it back in for repairs and review.
PS: I got this new in Jan 2014 so I have a month or two before my warranty runs out. I'm planning to call L3 EOTech and talk to them about this problem and ask them what they are going to do and how that will effect my warranty. I may just want to sell the unit back to them and go with another optics system if they can't get this fixed. I fear that they will try to put me off until the warranty expires and I don't want that to happen. Not when I paid $1000 for this system.
I really loved my EXPS3-4 and hate to see this happening. The system is really designed to use in Close Combat Quarters and I think it's still good for that. 4 MOA is not very much at 10 yards vs 200 or 400 yards. I would not be using this system for long range shots knowing what I know now. I actually purchased this system to use while hunting coyotes at night as they might get in close and are quick. This is why I went with the EOTech HWS on my Ambush Firearms AR15 Rifle. I wanted both eyes open while hunting at night and I wanted to be able to shoot at and hit a fast moving coyote who might run into my area at night. I hunt by myself at night and need to be able to protect myself while out in the dark with only a flash light and my AR15 and Pistol for personal protection.
I should also make a big note that the EOTech manual Jan 2011 states that the Zero can change by up to 2 MOA when you take the unit off the rail and put it back on the rail. So the 4 MOA change could be explained in part by my taking the EXPS 3-4 off the rifle's rail and then putting it back on again. But I'm pretty sure that in the past the Zero didn't shift very much when I removed the unit and put it back on the rail. But back then I was keeping the unit inside the house and it was not being exposed to high or low temperature. I was shooting when it was between 70 to maybe 85 deg F outside and I keep my house at a constant 70 to 75 deg F. Yes I keep the house air conditioned even at night during the winter and summer. I don't worry too much about the house temp in the spring and fall when it's nice outside. But the point is the EOTech system was protected from extreme temperatures both in storage and when shooting when I first got it back in Jan 2014. It was the Winter of 2015 and the summer of 2015 that the EXPS 3-4 got exposed to the high and low temperatures while stored in my attached non conditioned garage. I keep it inside it's padded storage case and then inside a plastic box with a lid on the box. But this box sat on the concrete floor near the garage door which is not insulated. So the garage flood could have gotten down to around zero at times this past winter and this past summer the garage could easily have gotten up to about 95 deg F at times.
And with the G33 I thought I had the best of both worlds until recently. 8" high at 200 yards is not want I want on my optic system. IE I'm not happy with a 4 MOA shift in my zero point.
PSS: I wasted 46 bucks (2 boxes of Hornady Superformance Match Ammunition) on ammo trying to get this optics system back on target at the range the last two times. This can not stand. And I was thinking that maybe it was due to the wind or my not mounting the EXPS 3-4 on the rail properly. But I tripled check the mount and it was on right all the time. The Laser beam is evidently shifting the reticle when it's heated and cooled too much. Remember that metals expand and contract with heat. So now I'm wondering how the Laser beams are held in place inside the EXPS3-4 system and if the materials are expanding and shrinking unevenly with high and low temps? If that is the root cause of the problem I wonder how that can be fixed?
Never owned one, but have seen numerous ones quit. I was using a borrowed rifle one time for literally a few minutes and the EOTech on it turned itself off and on a few times. Owner said 'It never does that'. It died before I handed it back to him. This was in 2011 and was one with CR123 batteries.
First and last time I ever shot an EO myself.
I have an EXPS3-0 (CR123 model) that I bought new. I'm currently waiting for it to return from repair for the reticle fading and disappearing at the bottom of the sight glass. I love the reticle and can shoot better with it than I can with an Aimpoint (astigmatism) but I'll never fully trust it again. Luckily for me, Eotech is fixing it free of charge even though it's a couple months out of warranty. Not sure at this point if I'll keep it or try to sell it when it comes back.