Hey fellas, so I have an EXPS 2 with a G45 behind it and need to get this sighted in. Do I need to do anything with the G45 or just sight in the EXPS? Should I start at 25 yards?
Sighting in EXPS and G45
- Thread starter Glock1943
- Start date
Start @ 7 yrds./21 feet.
Here's I believe the simplest video about how/why.
www.bing.com
The zero for 7yrds./21 feet is at the bottom of the circe @ "6'o clock" to compensate for the height difference bet. the optic and the muzzle. When U zero the optic @ 7 yds. you're also lined up for 50 yrds. w/the center dot if you've got a "1 dot reticle".
Go to this page...
www.eotechinc.com
Scroll about halfway down the page, which shows the 1 and 2 dot reticles for the Exsp 2 and what part of the circle U zero for what distance.
Obviously, the zero @ 7 yrds is going to count most if U got this on a shotgun loaded w/buck, and maybe out to 50 yrds w/slugs.
Scroll down just a bit more the page goes into "range estimation" which obvioously applies to when U got this on a rifle.
The "circle of death" is 68 MOA, so from head to toe a guy 5'8 fits just inside the circle @100yrds, and then there's the illustration of what you'd see @ 200/300/400 yrds.
Notice that when you're lined at @ 7 yds, (because holding zero @ 7 yrds. the muzzle is pointing up) you should also be roughly lined up at 200 yrds. which counts when you've got the Eotech on a rifle.
After U get your zero, U line up the magnifier so what UR seeing thru the Eotech is centered.
You'd still have to go out and practice to see how your ammo lines up w/the zero (not up close but @ distance).
Here's I believe the simplest video about how/why.
how to sigh in the eotech video - Search Videos
The zero for 7yrds./21 feet is at the bottom of the circe @ "6'o clock" to compensate for the height difference bet. the optic and the muzzle. When U zero the optic @ 7 yds. you're also lined up for 50 yrds. w/the center dot if you've got a "1 dot reticle".
Go to this page...
EOTECH HWS EXPS2™
The Model EXPS2 allows for co-witnessing of iron sights and has convenient side buttons to add a magnifier. It features an adjustable, locking, quick-detach lever for easy attachment and removal.
www.eotechinc.com
Scroll about halfway down the page, which shows the 1 and 2 dot reticles for the Exsp 2 and what part of the circle U zero for what distance.
Obviously, the zero @ 7 yrds is going to count most if U got this on a shotgun loaded w/buck, and maybe out to 50 yrds w/slugs.
Scroll down just a bit more the page goes into "range estimation" which obvioously applies to when U got this on a rifle.
The "circle of death" is 68 MOA, so from head to toe a guy 5'8 fits just inside the circle @100yrds, and then there's the illustration of what you'd see @ 200/300/400 yrds.
Notice that when you're lined at @ 7 yds, (because holding zero @ 7 yrds. the muzzle is pointing up) you should also be roughly lined up at 200 yrds. which counts when you've got the Eotech on a rifle.
After U get your zero, U line up the magnifier so what UR seeing thru the Eotech is centered.
You'd still have to go out and practice to see how your ammo lines up w/the zero (not up close but @ distance).
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Awesome! Thanks for the help. I don't have a boresight so I'm going to have to get me one.Start @ 7 yrds./21 feet.
Here's I believe the simplest video about how/why.
how to sigh in the eotech video - Search Videos
The zero for 7yrds./21 feet is at the bottom of the circe @ "6'o clock" to compensate for the height difference bet. the optic and the muzzle. When U zero the optic @ 7 yds. you're also lined up for 50 yrds. w/the center dot if you've got a "1 dot reticle".
Go to this page...
EOTECH HWS EXPS2™
The Model EXPS2 allows for co-witnessing of iron sights and has convenient side buttons to add a magnifier. It features an adjustable, locking, quick-detach lever for easy attachment and removal.
Scroll about halfway down the page, which shows the 1 and 2 dot reticles for the Exsp 2 and what part of the circle U zero for what distance.
Obviously, the zero @ 7 yrds is going to count most if U got this on a shotgun loaded w/buck, and maybe out to 50 yrds w/slugs.
Scroll down just a bit more the page goes into "range estimation" which obvioously applies to when U got this on a rifle.
The "circle of death" is 68 MOA, so from head to toe a guy 5'8 fits just inside the circle @100yrds, and then there's the illustration of what you'd see @ 200/300/400 yrds.
Notice that when you're lined at @ 7 yds, (because holding zero @ 7 yrds. the muzzle is pointing up) you should also be roughly lined up at 200 yrds. which counts when you've got the Eotech on a rifle.
After U get your zero, U line up the magnifier so what UR seeing thru the Eotech is centered.
You'd still have to go out and practice to see how your ammo lines up w/the zero (not up close but @ distance).
No problem.
The one I've got is a green laser w/a magnet so you just stick it on the barrel, and it fits from 22 to 50 Cal so I think it's worth it 4 not much money.
For all its shortcomings, which have been magnified by newer optics, the Eotech is on my shotgun 4 HD because it's a big window; no worrying about lining up behind the exit pupil of a scope to acquire a threat while somebody is getting ready to put a hole in U.
The "circle of death" is obviously so big its impossible to lose/miss and just so natural to "surround it" around "center mass" against a threat up close and U can still use it if all of a sudden the battery quits (co-witness w/iron sights).
Put up a target w/a torso 5/10 yrds. from U, swinging the gun up and lining the "circle of death" around the torso ends up being one quick move.
U may be more familiar w/the Eotech than I am, but I thought I'd mention this.
Good luck.
The one I've got is a green laser w/a magnet so you just stick it on the barrel, and it fits from 22 to 50 Cal so I think it's worth it 4 not much money.
For all its shortcomings, which have been magnified by newer optics, the Eotech is on my shotgun 4 HD because it's a big window; no worrying about lining up behind the exit pupil of a scope to acquire a threat while somebody is getting ready to put a hole in U.
The "circle of death" is obviously so big its impossible to lose/miss and just so natural to "surround it" around "center mass" against a threat up close and U can still use it if all of a sudden the battery quits (co-witness w/iron sights).
Put up a target w/a torso 5/10 yrds. from U, swinging the gun up and lining the "circle of death" around the torso ends up being one quick move.
U may be more familiar w/the Eotech than I am, but I thought I'd mention this.
Good luck.
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Actually I'm not familiar with the EXPS. First time I've ever had one on a weapon so it's all new to me. That's what I love about this forum, there's a bunch of knowledgeable guys willing to help in any way they can.
I finally got to the range and sighted it in at 7 yards. It was right on when I shot below the circle, but when I took it out to 50 yards it shot really high, almost at the head of the silhouette. Am I doing this correctly?
Sighting in has to be verified/ck'd @ the range. Eotech's video worked for me, but your ammo may not want to co-operate.
Line of sight through the optic is a straight line meaning your barrel, depending on your offset, has to point upwards to meet your line of sight. That's why you're shooting high at 50.
I'm assuming we're talking about a carbine so I'd say zero at 50 and you'll be point and click out to around 200 depending on ammo/barrel length.
I'm assuming we're talking about a carbine so I'd say zero at 50 and you'll be point and click out to around 200 depending on ammo/barrel length.
The offset is for 7 yrds. sighted @ your 6 oclock (the "notch" at the bottom of the circle) so of course you go to the center dot for 50 yrds.
You're using the bottom of the circle for up close/7 yrds, you're switching to the center dot for 50 yrds.
Yeah, I know, but if he's shooting center mass at 7 and hitting the face at 50, something ain't right. I feel like that zeroing method leaves too much room for error. Bore sight it by eye, zero it at 50, shoot it at 7 so you know your offset up close. Should only be a couple inches depending on height over bore.
I get it. I'm just saying I've been using this reticle since it was the Bushnell Holosight and I've never zeroed that way and I've never had a problem with my zero. Something is getting lost between him zeroing at 7 with the bottom of the circle and 50 yards.
Got a question for you, were you going from the bottom of the circle for up close to the center dot for 50 yds. You probably are, but I thought I'd ask anyway.
If you've got the reticle w/2 dots it's the top dot for 50 yds.
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You won't be perfect doing it per the video, but even w/different ammo you won't be way off either, not @ 50 yds because 50yds. for a rifle round is basically a "line drive". Something is "out of whack" bet. the Eotech/it's mount/the gun (barrel)
Saying that doesn't help U though, so as somebody else suggested, you might need to go ahead and zero it @ 50 yds. first.
I'm indeed curious as to what the problem is, so be sure and drop a follow up, regarding what turned out to be the glitch as U spend more time w/the Eotech.
What long gun and ammo are U using w/it.
BTW: When it was high @ 50 yds. what part of the silhouette w/U aiming at/can U provide a pic to show what U were aiming @ and where U hit.
Saying that doesn't help U though, so as somebody else suggested, you might need to go ahead and zero it @ 50 yds. first.
I'm indeed curious as to what the problem is, so be sure and drop a follow up, regarding what turned out to be the glitch as U spend more time w/the Eotech.
What long gun and ammo are U using w/it.
BTW: When it was high @ 50 yds. what part of the silhouette w/U aiming at/can U provide a pic to show what U were aiming @ and where U hit.
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If it's a B27 style target that's probably over a foot high. Something isn't right.
The EXPS is nice and snug. Gun is good, sight is good, I’m just chalking this up to operator error. Thanks to everyone for the advice and help.
I was zeroing a XPS3-0 @ 50 meters the other day mounteg on a PWS Mk109 (9.75") .300BO. Quite a difference (10-12") of POA-POI differential between 147 FMJ @ 1820 fps v. 220 gr sig subsonics. I would recommend starting at 10 yds then move out at 10 yd incremeNts to stay centered on paper.
You're using the right part of the reticle at 7 yards, right? I would do this to get on paper (if you have to) then sight it in at 50 yards. That should put it back on at 200 yards depending on velocity and ammo of course. By the way that reticle is set up for 62 grain, it'll fluctuate a little bit with different ammo...
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He's using the same ammo up close and @50..
I actually agree w/Glock 1943 that this might be just his being new to this individual sight and how 2 work it.
I've seen slo-mo videos of scopes that were supposedly tight but wobbling all over the place, if that's the case it could be a problem that isn't pronounced @ 7 but obvious @50. The QD mount may be playing tricks on U.
When U can't figure out what's wrong, I try removing issues to see what's left.
Boresight w/a fixed reference (my laser worked for me, you may choose another way to boresight) w/the gun lashed down. to 7 yds.
Bottom notch of the circle
Get some premium ammo/the most accurate ammo U can find, to test if it's sighted in, taking the ammo question out of this.
Take the Eotech off the gun, put it back on, and tighten/adjust the tension (don't go crazy) more than you usually do pushed up against the front notch.
Have somebody else shoot your gun w/U test it w/the set-up who you respect as a good shot.
If you're off and he's on, then it ain't the sight or the gun.
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