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Discussion Starter · #1 ·


Even the wife got in on it! :)

I'm gonna be a bit brief as the board ate my long post before I hit the button.

Bottom line: I'm impressed. I like it.

Fired 250 rounds total, a mix of Lake City M855 and Remington 55 grain. Accuracy at 25 meters was an inch or less. Grouping opened up at 100 yards when I tweaked my ACOG in, but I blame a most of that on the shooter and to a much lesser extent the wind. I know its on at 100 meters though, zeroed to the M855. I was curious to see if the 1/9 twist would have an adverse effect on the 62 grain rounds, but I don't think they're heavy enough to need 1/7.

Only malfunctions were two failures of the bolt to lock rear on an empty mag, both times with the Bushmaster stamped PMAG that came with the rifle. My other PMAG and two countdown mags were fine. I thought it might be due to pressure/movement on the mag as I was shooting at the bench and the mag was resting on a sandbag (third point of contact with the bipod for zero: whatever works right?) but I couldn't replicate it. No issues when the mag wasn't in contact with anything at all.

My other big "whoops" was the hand guard coming off on me when I was lowering the rifle after emptying a mag. Pretty sure this was user head space and timing. I'm betting the pin wasn't seated properly. I also thing the fact that I lubed that pin contributed: when I first got the rifle I was having a devil of a time removing the hand guard, but its starting to break in well now. Not quite as easy as it should be yet, but its getting there. I observed no movement of the pin for the rest of the range time, and the incident occured very early in my shooting.

Recoil is about what I expected. Wasn't light enough to doubletap a 25 meter target without a very tiny delay reacquiring the dot to center mass, but I think that with training I can lick that. Fired ten rounds with the stock folded with no problem. That is a superb feature. Military vehicle crewmen almost need that feature in my opinion. In Iraq my M4 was always on the roof of the tank with me for tactical reasons, but also because it just would have sucked to try to put that thing inside in my crew station.

Just cleaned the weapon. As expected, no carbon anywhere except the gas system. Contrary to the manual, I'm using Hoppes lube on the moving parts without issue. For the most part cleaning was wiping off old oil and reapplying. The O ring on the firing pin retaining pin is a bit obnoxious to keep it from riding up, but I'll take that over scrubbing a star chamber any day.

All in all, I'm satisfied with the purchase though my pocketbook is still reeling a bit. Most expensive tool I've ever bought. However, considering the money I put into my Bushmaster gas piston M-4 to get it where I wanted it while the ACR was what I wanted it to be out of the box, I suppose it balances out.

For good measure, two vids the wife and I took at the range.

http://www.youtube.com/watch?v=iHQlRoivFJI

http://www.youtube.com/watch?v=mtXs-Q3qWeo
 

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Thanks for the range report, always good when you hear of a postive outting. BTW, smart taking your wife shooting. Sooner or later you will hear, "So,,,,,,,,,when are WE going shooting again?" :)

Just looked at your vids, quick question;

In the 2nd one with your wife shooting, was she using the red dot, or just kentucky windage? (just curious)
 

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Discussion Starter · #3 ·
Thanks for the range report, always good when you hear of a postive outting. BTW, smart taking your wife shooting. Sooner or later you will hear, "So,,,,,,,,,when are WE going shooting again?" :)

Just looked at your vids, quick question;

In the 2nd one with your wife shooting, was she using the red dot, or just kentucky windage? (just curious)
She's just eyeballing it. I was trying to get her to use the red dot, but I failed to give her a good block of instruction on it. Its a small window, and she couldn't see the dot easily from her natural angle, so she assumed the glare drowned it out. I gave her a block of instruction after about the optic, as well as a better shooting stance for standing engagements.

She fired about 50 rounds from my Kimber Custom II while I was tinkering with the ACOG, so she had a good time, though I did have her there a bit longer than she'd have liked :)
 

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Good to hear you're breaking in your new rig! The wife likes to shoot the 1911 so she burns through all my .45 and then never helps to reload any. The nerve of some people... ;)
 

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Thats so awesome. I have a hard time getting my wife to leave the range. She loves to shoot.
 

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Jealous. My wife literally shot one round of .40 cal Glock and she was shaken. Done. Never again.
 

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Discussion Starter · #8 ·
Put another 100 rounds through yesterday. Not one malfunction. Gotta tweak the ACOG's red dot a bit (I didn't bring all my tools this time). I did get the scope itself tweaked; last time we had pretty stiff winds that threw my zero off. Also learned that with my red dot sighted in at 25 yards, the point of impact will be about two inches lower than point of aim at 25 feet.

Really digging this rifle.
 

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Yeah, the dreaded parallax. Similar when you sight in for 100M and drop down to 25M. Gotta aim using the bullet drop marker on your optic.
 

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Discussion Starter · #10 ·
My mistake, I didn't clarify I experienced the drop specifically with the red dot. I knew there would be parallax, just wasn't sure how much. The red dot is zeroed at 25m and the point of impact at 10m is about two inches low at point of aim.
 
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