AR-15 accuracy

K

Keeper

New member
I just bought a new dissipater from bushmaster. I am not sure if it is me but the accuracy seemed terrible from a rest at 50 yards. The best group I got was around 3 to 4 inches with iron sights. I will freely admit that I am not the greatest shot in the world but from a rest I would expect better groups. I can think of three simple things right off the bat. One I am not used to the rifle and it could be me. Two, I only tried one type of ammo, Georgia Arms .223 55 grain. They are reloads and their ammo is not match but I have never heard of ammo causing such bad groups at 50 yards. Three, I added an accu wedge without trying the gun first and it might be causing problems? What do you guys think, am I just a piss poor shot or is there something else I am missing. I am thinking of putting a scope on it and trying a few different types of ammo to see if it is the rifle of just me.

I forgot to add, is there any way to get the handguards back on without having two people do it. I got them off by myself but I had a bear of a time getting them back on even with the help of my wife.

Thanks.
 
according to the TM,the Handguards are a 2man operation...

One of the tricky things with an AR is repeating the cheek weld & sight picture

try putting the tip of your nose on the charging handle

dZ
 
DZ.

Thanks for the idea. THat is one thing that I did not think of and that will probably help. I am also left handed and I thought that might be causing some problems but my cheek weld was probably floating back and forth. :)
 
You should get somewhere around 1 MOA out of that rifle. If you still can't get good groups after a second trip, try to find an experienced AR shooter who can give it a go. They should be able to confirm the rifles condition. If it still shoots big groups with them at the controls it probably needs warranty work.

The ammo should be fine for 1 to 1.5 MOA work. I've used it in my DCM gun and it can perfom at 1 MOA and smaller at times.

Mikey
 
Keeper,
For the handgaurds, send john1@k-inc.com email, he made a tool that works like a charm and for $28.00 is a must for AR owners.
As for your groups, I have a Dissapator and I get 2-3 inch group at 100 using a Red Dot and not really taking my time. Then using the Iron sites the groups open up abit as well. Again I am NOT taking alot of time.
Now with my VMatch, 16inch barrel and the ATN 5x33L scope I can shoot nice little groups all day long, but I try abit harder also.
I guess the Dissapator is just for fun to me.
I have been shooting S&B and the SA stuff with 55 grainers. I also have some 62 grain police ammo that is awesome out of the Vmatch.
My Stoner M4 is sorta very light in the front with the RAS Rail handgaurd being vents and made of light aluminum. That one is going to take a bit of gettin used to. Then I have too figure out the 2 stage trigger. Seems you send all that money on a Stoner and that is about all they put in the box is the rifle :confused: and very basic safety instructions.

I would go to the range and send some time getting used to the new rifle. They are somehow different, can't really say why but they just take some gettin used to.

Good Luck

Karsten
 
I am not familiar with the disappator model but if memory serves me right it is a very short barrel and the barrel is a heavy barrel. If this is true and the gun is a heavy barrel the gun should be capable of at least 3/4 inch groups at 100 yards with some weapons shooting under 1/2". If you have a shorty barrel the muzzel blast will be a detriment to shooting good groups but it can be done with good ear muffs and concentration. If you do not have a heavy barrel in the AR you can forget good groups they usually shoot abour 2 1/2 to 3 inches at 100 yards. If you want to shoot good groups here is a good formula:
1. Use a top notch scope of 24 power like the Leupold or Bushnell elite.
2. Install a match trigger, 50% of all rifle accuracy comes from a good trigger.
3. Use match grade ammo.
4. Do not overheat the barrel when firing the weapon
5. Be aware of mirage and wind on a sunny day
6. Use a good solid rest and sand bags under the rear of the stock.
7. Practice, Practice, Practice, get familiar with how your rifle works and how the trigger feels before let off.
 
I shoot a Bush Shorty. Prior to installing a free-float tube, I was able to remove and replace the handguards with no help. Prior to replacing the 8# trigger that came from the factory, I couldn't hit crap. Spent $140 on a JP trigger/hammer combo. Groups miraculously shrank. Also, I only shoot my own reloads. I don't know anything about the quality of GA Arms ammo.

And, you might be correct; you might be a terrible shot. I'd bet that it's the ammo and/or trigger, though.
 
Gotta remember these sights weren't designed for punching holes in paper. They're designed for hitting man-sized targets at combat ranges. Putting your nose on the charging handle is good advise. Your eye should be as far forward as physically possible to get a consistent cheek weld. The rifle doesn't kick much, but be sure to plant the buttstock in your shoulder real good, or your nose will get bumped. A little bump on the nose is normal. Some people tape a penny to the buttstock or use some other tactile method to get the same cheek weld each time.

Are you using the gargantuan short-range aperture or the humongous long-range aperture? :) The larger aperture (aka battlesight) basically functions like a ghost ring. You see not only the front sight post but alot of the area around it in the sight picture, which is desirable in a battlefield setting. If you're using the large aperture, try flipping up the small aperture and using it. You'll have to readjust your elevation because the apertures aren't on the same plane. If your sight bottoms out at 8/3 (or 6/3), you can adjust it to bottom out below that for short-range target shooting with the smaller aperture. To do that, you'll have to loosen the allen key on top of the sight. LMK if you need instructions.
 
I have a Bushmaster V Match that I took to Wyoming for PD hunting. Closest kill was at 95 yards and farthest was 252 yds. Most shots were in the 100-200 yd range and I hit 5 with the first 7 shots, then they got wise and started moving around.

I was shooting Black Hills 52 gr match HP's in the blue box (their reloads). It likes that bullet the best. I tried some of the BH VMAX 50 gr, but they were not as accurate.

The rifle has a Burris 4-14x44 scope and a Rock River trigger in it.
 
You might try Hornady's 60gr TAP ammunition. I found this to be more accurate in my AR than the Black Hills 52gr "Blue Box".

-z
 
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