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Range Day, 9-24-11


Matt.Cross

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Well, I swapped my DPMS bolt carrier into my Mega Arms build and headed off to get some range time with my new rifle. Armed with many boxes of FGMM, I hit the range early and decided to have fun no matter what happened. I started with a partial box of FGMM, (8 rounds) to determine whether and/or where I was going to be on paper. Where I was averaged out to 8 MOA low, and 1 MOA right, so after my 8 rounds I adjusted accordingly and shot that zero for the rest of the day with only minor adjustments made sporadicly.

My only complaint for the whole day is that I'm such a bad shooter that I'm making the gun look awful, BUT... I made a concerted effort to follow each shot and they are placing exactly where the reticle was when the shot broke. It's just up to me to become better at breaking the shot correctly.

I promised a member here in the Mega Arms thread that I would even post my embarrassing shots, so here goes.

Here's the sight-in target, starting with scope test #1:

ScopeTestGrp1.jpg

Scope test #2:

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/ScopeTestGrp2.jpg

Then after setting zero, target #2:

Top Right

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target2TopRight.jpg

Top Left

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target2TopLeft.jpg

Bottom Left

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target2BottomLeft.jpg

Bottom Right

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target2BottomRight.jpg

--------------------------------------------------------

Target #3:

Top Right

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target3TopRight.jpg

Top Left

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target3TopLeft.jpg

Bottom Left

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target3BottomLeft.jpg

Bottom Right

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target3BottomRight.jpg

------------------------------------------------------------------

Target #4

Top Right

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target4TopRight.jpg

Top Left

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target4TopLeft.jpg

Bottom Left

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target4BottomLeft.jpg

Bottom Right

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target4BottomRight.jpg

----------------------------------------------------------------

Target #5

Top Right

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target5TopRight.jpg

Top Left

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target5TopLeft.jpg

Bottom Left

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target5BottomLeft.jpg

Bottom Right

[img width=810 height=602]http://i214.photobucket.com/albums/cc158/jm_cross/Range%20Day%20%209-24-11/Target5BottomRight.jpg

Targets 2 - 5 were all 5 shot groups. All shots were 168gr HPBT Federal Gold Medal Match.

All told, I'm very pleased with the build, and I'm confident that as I become a better shooter, groups like #4 top right will become much more common.

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nice post matt. very telling of your build and personal ability, which is better than you credit yourself with. i am assuming you did not "bench" your rifle, which would give you more consistant groups but won't tell you real data. i have days with my larue that i shoot 1/2 moa or better and then i'll go and shoot much worse. those days i'll put it away and grab my gsg5 and forget about it. don't get so wrapped up in the paper, so times it lies. i am not a pro, don't have formal training, but i do know how to have fun, and i try to get better, and you , imho, are doing just fine. nice job

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nice post matt. very telling of your build and personal ability, which is better than you credit yourself with. i am assuming you did not "bench" your rifle, which would give you more consistant groups but won't tell you real data. i have days with my larue that i shoot 1/2 moa or better and then i'll go and shoot much worse. those days i'll put it away and grab my gsg5 and forget about it. don't get so wrapped up in the paper, so times it lies. i am not a pro, don't have formal training, but i do know how to have fun, and i try to get better, and you , imho, are doing just fine. nice job

You are right about the gun not being "benched", I shot the scope test targets off the bipod from a seated rest, all the 'post zeroing' targets are off the bipod from prone. I find that being honest with myself about my shooting helps me stay motivated to try to keep it continually improving. I'm eager to get to the point where the limitations of how well I shoot are in the gun itself, and right now I'm just not there. I will get there though, and I'm satisfied that this is a weapon I can get there with. I couldn't be more pleased with the rifle itself, I just gotta get the shooter whipped into shape. <thumbsup>

My motto is: "I shoot not because I AM a great shooter, but because I WANT to be a great shooter."

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Better shooting that you think, brother.  <thumbsup>  I'm seeing some breathing issues there, with the vertical stringing.  Best way to remedy that is to always shoot at the same point in your breathing cycle - exhale, relax, shoot.  That'll help with vertical stringing.  Horizontal stringing can be from a couple different things, but most commonly it's from inconsistant sight picture or jerking the trigger. 

That's good shooting, though - don't be worried about that.  Definitely minute-of-man.  ;D

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Better shooting that you think, brother.  <thumbsup>  I'm seeing some breathing issues there, with the vertical stringing.  Best way to remedy that is to always shoot at the same point in your breathing cycle - exhale, relax, shoot.  That'll help with vertical stringing.  Horizontal stringing can be from a couple different things, but most commonly it's from inconsistant sight picture or jerking the trigger. 

That's good shooting, though - don't be worried about that.  Definitely minute-of-man.  ;D

Thanks, it's great to have somebody that can help me identify those issues. I know I have a good enough setup that the results are on me, which is a big relief. When I was shooting the top right on target #4, I heard a guy a couple lanes over put his son on the spotting scope and say "Look what the AR guy on lane 6 just did!", which of course was followed by more of the rest of what you saw. After my 3rd mag, I had no malfunctions whatsoever, which makes me inclined to believe that my bolt and barrel have become good friends. It was very crisp and tight for those first 3 mags though.

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  • 3 weeks later...

can see any differences? Did they offer an explanation? Do you think you got the same BCG back?

Yes, I will post up a pic after the range session, but they just milled the hammer clearance back a little further like the DPMS carrier. They did offer an explanation, while their basis for their carrier was the DPMS pattern, they didn't take differing hammer lengths into account. Apparently the prevalence of aftermarket hammers is bringing this to their attention, but to be fair, it's not an officially marketed product yet. I do think I got the same bolt carrier back, I sent it to them with the bolt, cam pin, and firing pin and retainer all installed. It shipped back to me the same way, only with a very clearly re-milled hammer clearance showing. I'm very happy that they got it back to me in time to shoot this weekend. Dry firing tests suggest that it's working perfectly, but I still want to put a few boxes through it before I proclaim it to be healed.

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