9mm EZ shoots low

[Pressdoctor]

I went to the range yesterday and took both my Glock 43X and my new 9mm EZ.
Using two zeroing targets, I fired ten from the Glock and 8 from the EZ.
I sighted exactly the same with both iron sites and both groupings were tight.
However, using the same sight picture, same ammo, etc., the S&W shot 3 inches low at 25 feet.


Any ideas???

 

[murphydog]

It may just be how the 9EZ prints with that load. Would probably try a heavier bullet loading if you tried 115 or 124 gr.

 

[Execpro]

If you used the dots to sight with, it shot low for me. The front dot was miss drilled. If you align the top of front sight with top of back sight, it should be poa=poi. I shoot 124gr bullets and check sight in at 10 yards from a rest with 3 or 4 different ammo makers.
I painted my front sight with Testor’s bright yellow model paint and the back sight dots with flat back paint. Problem solved.

Target on left was using dots (3” low).Target on right was alighting top of front sight with back sight.
murphydog also has a good point. Try a different weight or ammo maker with the same weight.

Be SAFE and Shoot Often!

 

[jurek]

Execpro is right... and to be honest I don't know why people match dots, diamonds, squares..whatever is on the sights.

Sights should be always adjusted with their tops. Top of the front has to be matched with top of the rear.
Perhaps I'm missing something... but so far all of my handguns works this way... and it doesn't matter what brand.

 

[cracker57]

one thing thats hard for people to understand especially rifle shooters is that with heavier bullets the round stays in the barrel just a wee pit longer, with the muzzle rise it will print a bit higher than a light bullet that leaves the muzzle faster
with a rifle at long distance the heavier bullet will of course drop faster and shoot lower.

 

[NukeRef]

with a rifle at long distance the heavier bullet will of course drop faster and shoot lower.

I believe Sir Isaac Newton would disagree with you. It is muzzle velocity not bullet weight (mass) that counts as far as gravity is concerned.

 

[cracker57]

I believe Sir Isaac Newton would disagree with you. It is muzzle velocity not bullet weight (mass) that counts as far as gravity is concerned.

Agreed 100% most ammo with heavier bullets have a slower Velocity therefore do not shoot as flat as a lighter bullet going faster, this means they fall from the sky faster and print lower.
This is still true with pistols also but at 10 yards compared to 100 you don't see the affects of Isaac Newtons gravity.

 

[Pressdoctor]

I'll try all of your suggestions when I go back next week.Thank you for the help

 

[MTC(SS)Ret]

I found with my 9EZ shooting 124gr FMJ's, I align the top of the sights front and rear and bisect the bullseye with the top of the front sight. At ten yards POA and POI are dead center.

 

[toc1]

My Flame suit is on. This may sound simple but this is what I have found with some ( many) three dot guns.
I grew up with black iron sights and a six oclock hold. As I started with the three dot sights I found the same sight picture would produce a lower impact. what I found was the three dot sights needed to be level with the rear but right on your desired impact area. In other words the white dot is level with the rear but dead center of where you want the bullet and not like the old iron sights and the six oclock hold. Try it and see if that helps and if not then nothing ventured nothing gained.
Good luck

 

[MTC(SS)Ret]

My Flame suit is on. This may sound simple but this is what I have found with some ( many) three dot guns.
I grew up with black iron sights and a six oclock hold. As I started with the three dot sights I found the same sight picture would produce a lower impact. what I found was the three dot sights needed to be level with the rear but right on your desired impact area. In other words the white dot is level with the rear but dead center of where you want the bullet and not like the old iron sights and the six oclock hold. Try it and see if that helps and if not then nothing ventured nothing gained.
Good luck

I have read the sight alignment you refer to is called the "Combat Sight Picture" and many gun makers install sights this way. I guess the six o'clock hold us old timers were trained to use in the military with a 1911 gov'ment model is a thing of the past. But I reckon a 45 cal hitting 3 inches low will still do what it was intended to do.

 

[Execpro]

I have owned Sigs, Glocks, S&W and others with 3 dot sights. They have ALL worked as pictured below. When the 3 dots are lined up, the top of the front sight is level with the rear sight.
Whatever is at the top of the front sight is where the bullet goes when dots are aligned.
This is the FIRST gun I’ve owned that the front dot placement was wrong.
The whole idea of the 3 dot sight system (especially night sights)
was to give the shooter faster sight acquisition (it takes less time
to line up the dots than to line up the top of the front/rear sights).
Of course it would be impossible at night without 3 dot night sights.

Be SAFE and Shoot Often!

 

[doc540]

my new EZ .380 PC shot low/left right out of the box

adjusted the rear, but will have to learn a new sight picture now

didn't really want to have to do that

 

[jurek]

my new EZ .380 PC shot low/left right out of the box
adjusted the rear, but will have to learn a new sight picture now
didn't really want to have to do that

Low/left... for right handed shooter....
Sounds familiar, as everyone says that's a common issue with trigger press

I'm not picking on you, but this is not EZ sights problem.

 

[doc540]

Low/left... for right handed shooter....
Sounds familiar, as everyone says that's a common issue with trigger press

I'm not picking on you, but this is not EZ sights problem.

and neither is it this shooter's problem

I've shot handgun matches for years and as a certified instructor I teach handgun classes every month.

Of the dozens of handguns I've owned and shot NONE of them has shot this low at 5-10-15yds, especially not new and right out of the box.

 

[Babysitr]

IIRC, there is also a shorter front sight available from S&W, that may help also if nothing else easy does

 

[MTC(SS)Ret]

Low/left... for right handed shooter....
Sounds familiar, as everyone says that's a common issue with trigger press

I'm not picking on you, but this is not EZ sights problem.

I had the same low/left issue my first time at the range with my 9EZ. Even after plenty of dry fire practice getting accustomed to the trigger I found myself jerking the trigger instead of making a smooth pull.
After a box or two at the range I got the trigger worked out and the sight picture right and have no trouble putting shots in the center.

 

[marvin02]

If anyone does find that it's not YOU, it is the pistol; you can get a quality fiber optic sight from Dawson Precision. Here's my post with pics of the sight I used.

http://smith-wessonforum.com/140964538-post10.html

There is a calculator on the Dawson web sight to help you figure out what height you need.

I am not affiliated with Dawson Precision, I have just given them some of my money for quality sights a time or two.

 

[Pressdoctor]

Went to the range today, I had discovered that the front sight on the 9mm ez was not centered. I was able to "persuade" it into the exact center with the help of a vanier caliper. Shot perfectly straight. However, to get the shot on target, I have to align the front sight dot with the top of the rear sight ignoring the two dots. Appears to me that possibly the dots are miss-drilled.

 

[stansdds]

Could be the ammo. My 6946 shot way low with 115 grain ammo, it was a little better with 124 grain ammo, but shot closest to the point of aim with 147 grain ammo.

Also, my 6946 was definitely set up for a "combat" hold sight picture, with the dots aligned, the 147 grain bullets would land within the front dot. Not being a huge fan of having to cover my intended point of impact with the dot, I filed the front sight to raise the point of impact and had just enough height to flatten the face of the sight and drill a new dot. Doing all of this allows 147 grain bullets to "land" on the top of the front sight at 25 yards.