AR-15 Windage Problems

[nip]

This weekend I shot my Stag Model 1 AR-15 for the first time. I quickly discovered something after firing 10 rounds: none of them hit the paper. At 50 yards. Prone.

While I'm not a marksman, I'm not *that* bad. To the right by 30 clicks windage adjustment I was finally mostly on target. Mind you, that's pegged all the way over on the rear sights. My plan is to take it back to the shop and have Stag take a look at it but before that, is there something I could have missed? I haven't done much to the rifle aside from an Ace skeleton stock, hogue grip, and putting a tapered, rather than square, front sight post in.

Ammo was Prvi Partizan 55gr. FMJ BT and PMC 55gr. FMJ BT which I believe are both ok in terms of accuracy.

Anyone? I'm kind of disappointed in my first AR-15 experience and would like to improve it a bit at this point. I like how the rifle fires and feels but this is a bit annoying.

Thank you in advance.




nick

 

[RichM]

Try adjusting your firing position... make sure that your firing position holds the rifle vertically, and make sure that your head position is stable and your eye is centered behind the rear sight.

 

[RKG]

Cocked front sight. Not uncommon.

 

[amb]

Most tapered front sight posts have only one of the four sides that you're meant to look at; it should taper inwards towards the front of the rifle on both the top and sides. If you didn't realize that it might cause a tiny error. As might having the rifle not quite vertical.

Neither of those is going to cause anything like that much of a windage problem, though, especially at 50 yards. I'm with RKG--look at the front sight base, it's probably noticably off to one side. If it was a click or two off, I think you just get to lump it, but this should definitely be fixed by Stag.

 

[hunter46spring]

my guess would be front sight since that is what you replaced. try the old sight and compare

 

[nip]

I suspect it might be a cocked front sight base.

Rich, I think I may have been in your group at the Appleseed in April (Nickel's group). I had all of those techniques in mind when I was at the range on Sunday. And the 10/22 I was using was shooting 1/2" groups (with a couple of fliers) at the same distance (shooting prone as well). I'll check it out again tonight (not firing, but alignment of the FSB as best as I can). Probably a trip to the shop is next in order.



nick

 

[ochmude]

Definitely sounds like your front sight post is jacked up.

 

[nip]

I just took a quick look again and low and behold - since I'm a newbie with ARs I didn't notice this originally, but the FSB is *definitely* cocked to the right. Time for a trip back.

Thanks!



nick

 

[RichM]

Good job, Nip... I completely flew past the fact that you replaced the front sight post and that it was a new, unfired rifle... I assumed "operator error"...

Yes we were in the same group at Harvard's Appleseed. I still have to get my TC .22 back to the factory for repair or replacement...