Shooting High

[NC-G27]

Having trouble with my M&P 15-22 shooting high... about 4 inches high at 50 yards. When I take aim, I'm "placing" the bullseye on top of my front sight, much like if it were a ball, it would be sitting on top of the front sight.

The rifle holds really tight groupings, it's just that I have to aim/compensate about 4 inches low to hit the bullseye. I have the stock sights that came on the gun, and I have the rear sights ran all the way to the bottom. I have adjusted the front sight up and down and really can't tell that adjustment makes a whole lot of difference.

Can someone point me in the right direction here?

Thanks in advance.

 

[BELT_FED]

The front sight has adjustment in it if there isn't enough u can shim it up alittle... u might wanna remove your barrel clean everything good and put it back together 1 piece of grit can push it way off at 50 yds

 

[~tc~]

What distance did you sight in to Zero?

 

[BELT_FED]

I understood that's what he was trying to do

 

[zercool]

Front sight up several clicks/turns, fire for group, repeat as needed. Also, don't bottom out the rear sight, bring it up a couple clicks so you've got some adjustment range still.

(Front Opposite, Rear Same - move the front sight opposite the direction you need the move the group, or the rear sight the same direction.)

 

[~tc~]

I understood that's what he was trying to do

Perhaps, but if he previously zero'd at say 50', then things could be all out of whack.

 

[chuck s]

Front sight controls elevation during zeroing. Put the rear sight all he way down (and leave it there).

The front sight on the M16 has an arrow and the word UP. Not sure if the M&P15-22 has the same marking. Depress the detent and turn in the direction of the arrow to move the strike of the bullet up. No doubt this is clockwise as the front sight post is threaded and righty-tighty will lower it and raise the bullet strike. The detent is designed to be depressed with the point of a 5.56mm bullet but anything pointed will do. There are little tools sold for this, but it's an infrequent adjustment.

-- Chuck

 

[BeginingOfTheEnd]

Thanks chuck I had the same issue. Re-zeroed from 50m to 25m (gophers are stupid this time of year) and when I move up to 15m I'm shooting aboput 3-4 in high

 

[NC-G27]

Thanks guys!

Today, me and a friend were plinking, he just bought a Ruger 10-22 carbine, and he was aligning his rifle... I decided that I'd "just start over" with my 15-22....so I put the front sight at flush, and put the rear sight at 20 clicks up/off the bottom... Shot at 60 feet and I was about 3 inches low. Adjusted the rear sight to compensate for this and put about 300 rounds through it afterwards and it was dead on....

Go figure...

At any rate, it's shooting where I aim it now and I'm a happy camper...

Thanks again!

 

[~tc~]

Shot at 60 feet and I was about 3 inches low. Adjusted the rear sight to compensate for this and put about 300 rounds through it afterwards and it was dead on....

With a zero that close (in range), the drop compensation for different ranges is going to be pretty extreme... but then, if you only ever shoot at 60', that doesn't matter much ...

 

[chuck s]

The sights on the M&P15-22 are the same 2.6" above bore center as the M16 so the bullet trajectory will have to rise as the bullet travels up to line of sight. A good "battlesight zero" for this rifle is 50 to 75 meters. Because the trajectory is still climbing at this range you need to hold over slightly at shorter ranges for precision shots. But shooting center of mass at a silhouette the rounds should remain in the 0-ring of an IDPA target at ranges from 25 out to just beyond 75 meters.

Trying to use a lollipop hold with the bulls-eye balanced on top of the front sight requires the bullet to strike much higher than point of aim and is only practical shooting targets of a known diameter at a known range. Entirely impractical for things like gophers or even shotgun hulls where you want point of impact to be at point of aim.

-- Chuck