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Posted: 1/21/2012 3:41:19 PM EDT
So I got the upper for my PSA build and took it to the range. This is my first AR. I was shooting a mix of American Eagle 55 grain and Monarch Brass i believe 55 grain and using a MaTech BUIS. Target was 25 yards away and the MaTech was on the correct setting but all the shots were grouping a little low and to the right. I had to adjust the sight this much in order to get it center.
Is it just the ammo? Is this completely normal? Its out of the FN Hammer Forged barrel on a 16 inch middy. |
| Well to really tell for sure you need to secure the gun in a gun vise to sight it in . You can't shoot just offhand or even leaning on a bench and hope to accurately sight in your gun. The trigger on most ar's is a trigger of about 7-9 lbs and not the smoothest of pulls. So if you don't have much trigger time your going to pull off target a little. Sometimes that can even be a consistant pull of target to the point they all group close to the same spot and make you think it's the gun and not you. So sight it in with a gun vise first and rule out the human factor. After that if your sights still end up being in the same place I would say that it's most likely a canted sight base. Which will throw your rear sight off and will cause your sight to usually go the let if looking from the rear of the gun just like yours are to make up for the canted sight base. I think I'm right on that but I could be wrong. It's happened to me in the past and I think my sights were adjused to the same side. There is really nothing you can do about a canted sight post and with you still being able to sight the gun in I wouldn't worry about it. That's why there is a windage adjustment to be able to sight your gun in. You don't need it to be perfectly centered and it won't affect you in the future. |
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Quoted:
DAMN ... a whole half-notch off center. Break out the band saw!!!!! The amount of sarcasm and useless replies on this forum is ridiculous. If you dont have anything helpful to say then dont. Im not bitching or ranting, im asking if this is normal seeing as i dont know much about ARs. |
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Quoted:
Well to really tell for sure you need to secure the gun in a gun vise to sight it in . You can't shoot just offhand or even leaning on a bench and hope to accurately sight in your gun. The trigger on most ar's is a trigger of about 7-9 lbs and not the smoothest of pulls. So if you don't have much trigger time your going to pull off target a little. Sometimes that can even be a consistant pull of target to the point they all group close to the same spot and make you think it's the gun and not you. So sight it in with a gun vise first and rule out the human factor. After that if your sights still end up being in the same place I would say that it's most likely a canted sight base. Which will throw your rear sight off and will cause your sight to usually go the let if looking from the rear of the gun just like yours are to make up for the canted sight base. I think I'm right on that but I could be wrong. It's happened to me in the past and I think my sights were adjused to the same side. There is really nothing you can do about a canted sight post and with you still being able to sight the gun in I wouldn't worry about it. That's why there is a windage adjustment to be able to sight your gun in. You don't need it to be perfectly centered and it won't affect you in the future. Thats kind of what i was thinking but it was with 3 different shooters, and i am able to get decent groups with my SKS and its shitty trigger and other rifles. And quite frankly i dont have the money for a gun vise. |
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Quoted:
Quoted:
Well to really tell for sure you need to secure the gun in a gun vise to sight it in . You can't shoot just offhand or even leaning on a bench and hope to accurately sight in your gun. The trigger on most ar's is a trigger of about 7-9 lbs and not the smoothest of pulls. So if you don't have much trigger time your going to pull off target a little. Sometimes that can even be a consistant pull of target to the point they all group close to the same spot and make you think it's the gun and not you. So sight it in with a gun vise first and rule out the human factor. After that if your sights still end up being in the same place I would say that it's most likely a canted sight base. Which will throw your rear sight off and will cause your sight to usually go the let if looking from the rear of the gun just like yours are to make up for the canted sight base. I think I'm right on that but I could be wrong. It's happened to me in the past and I think my sights were adjused to the same side. There is really nothing you can do about a canted sight post and with you still being able to sight the gun in I wouldn't worry about it. That's why there is a windage adjustment to be able to sight your gun in. You don't need it to be perfectly centered and it won't affect you in the future. Thats kind of what i was thinking but it was with 3 different shooters, and i am able to get decent groups with my SKS and its shitty trigger and other rifles. And quite frankly i dont have the money for a gun vise. You can get by just fine by also supporting the buttstock of the gun on a sandbag. This will completely steady the gun and it won't be moving with your heartbeat/breath. They make little sandbags with a v-notch in them for this purpose. Use it and you too can be shooting 1-moa or better from the bench with a good gun and ammo combination. Old Painless shows the proper technique on one of his Box O Truth's. Use your weak hand to squeeze the bag to make small adjustment elevation. |
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