Building first AR15

[Plumminfool]

What ammo are you using and did you only try one? What twist rate barrel?

 

[alexs2006]

Is any part of your gas block contacting the hand guard?

Can you post some pics of your setup?

No nothing is touching the hand guard.

 

[alexs2006]

What ammo are you using and did you only try one? What twist rate barrel?

I tried 9 different ammos. Barrel is a 1:7.5twist

AAC 77gr OTM
Frontier match 68gr
Frontier match 75gr
Georgia arms precision plus 60gr
Winchester white box 55gr
PMC X-tac Match 77gr
Hornady black 75gr
Hornady match 73gr ELD
Federal gold metal match 77gr

 

[Fatal_Bert]

Skill issue

 

[ReservoirDawg10]

Has anyone else shot it? Shooting a bolt 22lr is easier than shooting a gasser. Follow-through is imperative. Seen countless number of folks that truly believe they are a great shot dumbfounded by their "inaccurate new rifle," just to learn that maybe their fundamentals need some work. It could be any number of things leading to those group sizes.

If it were me, I would get someone else, a known good shot, to put a couple groups out there. Easiest thing to fix is the indian. You already addressed the bow, and tried multiple arrows, so take a look at the indian next.

I'd also be running the FGMM 77 grainers for testing. That should be your most consistent ammo out of what you listed.

 

[ReservoirDawg10]

You have a lot of vertical and horizontal stringing in your groups. Just looking at that fgmm group, I'd focus on your bipod load/follow through and natural point of aim.

 

[alexs2006]

Has anyone else shot it? Shooting a bolt 22lr is easier than shooting a gasser. Follow-through is imperative. Seen countless number of folks that truly believe they are a great shot dumbfounded by their "inaccurate new rifle," just to learn that maybe their fundamentals need some work. It could be any number of things leading to those group sizes.

If it were me, I would get someone else, a known good shot, to put a couple groups out there. Easiest thing to fix is the indian. You already addressed the bow, and tried multiple arrows, so take a look at the indian next.

I'd also be running the FGMM 77 grainers for testing. That should be your most consistent ammo out of what you listed.

I wanted to test a lot of ammo to see what it would like, apparently nothing.

No one else has shot the rifle, but I feel confident it isn’t me or a shooter issue. I follow through on every shot, I do not ever release trigger until I see impact on paper.

I have shot groups both from bipod front and rear bag as well as front rest and rear bag.

 

[BigMike]

I wanted to test a lot of ammo to see what it would like, apparently nothing.

No one else has shot the rifle, but I feel confident it isn’t me or a shooter issue. I follow through on every shot, I do not ever release trigger until I see impact on paper.

I have shot groups both from bipod front and rear bag as well as front rest and rear bag.

Borrow someone else's rifle and shoot it and see what you get.

 

[JDUB]

Nothing looks out of place to me. When you first shot it did you do the “break in” method of fire/wipe/fire wipe etc and all that?

 

[ReservoirDawg10]

Nothing looks out of place to me. When you first shot it did you do the “break in” method of fire/wipe/fire wipe etc and all that?

That is overplayed. Especially on quality barrels