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CMMG .22lr Upper (sierra) RANGE REPORT!!!

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  • nrakid88
    Veteran Member
    • Jul 2008
    • 3285

    CMMG .22lr Upper (sierra) RANGE REPORT!!!

    FINALLY! After months of waiting to get my gear, ammo, and the perfect day... I got out to test my CMMG.



    I was shooting at 50 yards, with a 1-4x Millet DMS. I wanted to find which bulk ammo would print the tightest groups.

    The following target is my first of the day, after zeroing the scope on rocks in the back stop, to see where I am on paper with Federal Blue Box 525 round brick. 50 yards, 10 rounds.



    I was pretty happy for my zeroing and the accuracy. So I moved on to comparing the different bulk packs.



    Top left- Fed Blue Box 525
    Top Right- Win 555
    Center- Rem 550 Golden Bullet
    Bottom Left- Fed Auto Match 325
    Bottom Right- CCI Mini Mag 100 pack


    I was shooting using the millet 1-4x, using a grip pod, and a rear sand bag. It became obvious that A)my gun likes remington golden bullets, and B) I was shooting low and to the left.

    I then printed the next group, adjusted my scope, and printed three more, using the Remington golden bullets. Once again, at 50 yards, using a grip pod, and rear bag, with the millet scope. 10 round groups



    I was pretty happy with the groups... Except I learned that my relation ship with Golden bullets is a love/hate one. Once my gun started getting dirty (which happened fast with the golden bullet), it started jamming frequently. Then, as I was holding my gun sideways, face pointing towards the chamber, and pulled the trigger, I got a case blowout since the bolt was 1/16th of an inch open.



    THANK GOD I was wearing eye protection. I felt it on my face, and the glasses saved my eyes. ALWAYS WEAR EYE PROTECTION. The fact that I often had a bolt left barely open, and that I like this accuracy, means I am going to upgrade to the forward assist .22 parts for my cmmg.


    Now that I had some fun with the scope at 400 yards trying to nail a pig, which I did a few times. I wanted to see how she did with irons at 50 yards.



    The top and bottom right targets show my results with 27 round magazines : ) Not too shabby for someone who needs some glasses. (Small note, I took off the shoot n see dot I was aiming at from the lower .22 group, and just put a pen circle to show POA)

    The other holes in the target are from my 5.56 bcm, a group at fifty and zeroing at 100 on the lower right, and a 5 shot group at 100 with irons on the lower left.

    If your thinking about a CMMG .22 upper, stop, and just buy the damn thing. You will love it.
    sigpic
    5.56 vs. 308? http://www.calguns.net/calgunforum/s...d.php?t=267737
    Originally posted by Cali-Shooter
    You are not a mall ninja. You are a defender of mall ninjas.
  • #2
    nrakid88
    Veteran Member
    • Jul 2008
    • 3285

    Oh yeah, and that brass blow out was LOUD! Immediately I thought I had a squib that I shot into or something else that was horrible. Thankfully my gun is A-OKAY
    sigpic
    5.56 vs. 308? http://www.calguns.net/calgunforum/s...d.php?t=267737
    Originally posted by Cali-Shooter
    You are not a mall ninja. You are a defender of mall ninjas.

    Comment

    • #3
      pennys dad
      Arizona Ex-Pat
      CGN Contributor - Lifetime
      • Feb 2008
      • 5984

      nice upper!
      Pennys Dad

      Ps 25:4-5 NLT Show me the right path, O Lord; point out the road for me to follow. Lead me by your truth and teach me, for you are the God who saves me. All day long I put my hope in you.

      Comment

      • #4
        nrakid88
        Veteran Member
        • Jul 2008
        • 3285

        Originally posted by pennys dad
        nice upper!
        Thank you sir, I am in love with it.
        sigpic
        5.56 vs. 308? http://www.calguns.net/calgunforum/s...d.php?t=267737
        Originally posted by Cali-Shooter
        You are not a mall ninja. You are a defender of mall ninjas.

        Comment

        • #5
          shadow65
          Senior Member
          • Oct 2010
          • 1301

          I'm suprised it would cycle the Remingtons being new. The bullet profile is just enough different to cause feed problems. And yes, it's extremely dirty.

          Your groups will tighten up the more you shoot it.
          1.28 with Winchester 555
          My M4 LE will shoot 1.2" at 50 yards with CCI Mini Mags.
          .807 with Eley EPS
          Independent Field Tester/Research and Developement

          Better to die for something than live for nothing

          Comment

          • #6
            nrakid88
            Veteran Member
            • Jul 2008
            • 3285

            Originally posted by shadow65
            I'm suprised it would cycle the Remingtons being new. The bullet profile is just enough different to cause feed problems. And yes, it's extremely dirty.

            Your groups will tighten up the more you shoot it.
            1.28 with Winchester 555
            My M4 LE will shoot 1.2" at 50 yards with CCI Mini Mags.
            .807 with Eley EPS
            It isn't exactly new (not in my understanding of the term). I have at least 500 through the bore. I hope it will get more accurate, I guess the rifling can be smoothed out or something like that?

            Shadow65, do you know if I can order the Forward assist parts from CMMG, didn't see them seperately available on the site.

            And I am sure if I had a better scope, and a less windy day, I could have done better. I was trying to shoot only when the wind slowed down.
            sigpic
            5.56 vs. 308? http://www.calguns.net/calgunforum/s...d.php?t=267737
            Originally posted by Cali-Shooter
            You are not a mall ninja. You are a defender of mall ninjas.

            Comment

            • #7
              shadow65
              Senior Member
              • Oct 2010
              • 1301

              The forward assist is not an add on. The rail is machined for it.
              I try to get guys to order it when they order the upper. They almost always want it later.
              Dave N
              Independent Field Tester/Research and Developement

              Better to die for something than live for nothing

              Comment

              • #8
                nrakid88
                Veteran Member
                • Jul 2008
                • 3285

                Eh. No big deal, I am still on the fence so I am not sad to not get it. I kind of don't want to get into the habbit of shoving rounds that don't chamber in, when I have read that its recommended for the 5.56 to just charge the weapon and get a fresh round (since there may be a reason the bolt didn't want to close).

                It seems I can run Golden Bullets trouble free for the first hundred or so rounds, which is fine for hunting.

                I just need to get some more trigger time with her.
                sigpic
                5.56 vs. 308? http://www.calguns.net/calgunforum/s...d.php?t=267737
                Originally posted by Cali-Shooter
                You are not a mall ninja. You are a defender of mall ninjas.

                Comment

                • #9
                  nrakid88
                  Veteran Member
                  • Jul 2008
                  • 3285

                  And how many rounds should I expect to fire before accuracy stops improving?
                  sigpic
                  5.56 vs. 308? http://www.calguns.net/calgunforum/s...d.php?t=267737
                  Originally posted by Cali-Shooter
                  You are not a mall ninja. You are a defender of mall ninjas.

                  Comment

                  • #10
                    nrakid88
                    Veteran Member
                    • Jul 2008
                    • 3285

                    Oh yeah, and whats the link to the BDM BHOA modification page? I am tired of not being able to slam on my bolt release to charge the gun.
                    sigpic
                    5.56 vs. 308? http://www.calguns.net/calgunforum/s...d.php?t=267737
                    Originally posted by Cali-Shooter
                    You are not a mall ninja. You are a defender of mall ninjas.

                    Comment

                    • #11
                      NorCalDustin
                      Senior Member
                      • Apr 2010
                      • 1463

                      Originally posted by nrakid88
                      Eh. No big deal, I am still on the fence so I am not sad to not get it. I kind of don't want to get into the habbit of shoving rounds that don't chamber in, when I have read that its recommended for the 5.56 to just charge the weapon and get a fresh round (since there may be a reason the bolt didn't want to close).

                      It seems I can run Golden Bullets trouble free for the first hundred or so rounds, which is fine for hunting.

                      I just need to get some more trigger time with her.
                      It's more for when you've shot 500+ rounds with the upper and once in awhile rounds dont want to slip in because she needs some cleaning... But, I get you.
                      Originally posted by BannedinBritain
                      The only dumb question is the one you don't ask...and get arrested for later.

                      Comment

                      • #12
                        shadow65
                        Senior Member
                        • Oct 2010
                        • 1301

                        Never slam or force a .22 round in the chamber. I've used mine when shooting Aguila SSS which had a slight difficulty feeding because of the length. But it didn't have to force it. Just helped it along. It's also for hunters that may want to load quietly.
                        But truthfully, these were originally designed for L.E. and Military trainers and needed to have the same function as a 5.56. They just caught on with the public quickly.

                        For the BDM mod, I didn't have much luck. Just wasn't worth it.
                        The new CMMG 10 round mags are supposed to be released in 1-2 weeks.
                        Dave N
                        Independent Field Tester/Research and Developement

                        Better to die for something than live for nothing

                        Comment

                        • #13
                          nrakid88
                          Veteran Member
                          • Jul 2008
                          • 3285

                          Hopefully CMMG will change it's wack policy on sending rebuild kits. I got some old cieners that would love to be reborn into BHOA CMMG mags.
                          sigpic
                          5.56 vs. 308? http://www.calguns.net/calgunforum/s...d.php?t=267737
                          Originally posted by Cali-Shooter
                          You are not a mall ninja. You are a defender of mall ninjas.

                          Comment

                          • #14
                            NorCalDustin
                            Senior Member
                            • Apr 2010
                            • 1463

                            Originally posted by nrakid88
                            Hopefully CMMG will change it's wack policy on sending rebuild kits. I got some old cieners that would love to be reborn into BHOA CMMG mags.
                            You can purchase followers and springs all day long...

                            Also, Its my understanding that the 2nd Gen mags will be shipped as "Rebuild Kits" Aka "All taken apart".... No matter what state you live in.
                            Originally posted by BannedinBritain
                            The only dumb question is the one you don't ask...and get arrested for later.

                            Comment

                            • #15
                              nrakid88
                              Veteran Member
                              • Jul 2008
                              • 3285

                              Originally posted by NorCalDustin
                              You can purchase followers and springs all day long...

                              Also, Its my understanding that the 2nd Gen mags will be shipped as "Rebuild Kits" Aka "All taken apart".... No matter what state you live in.
                              Really? That was not the drift I got through emails a generation of magazines ago.
                              sigpic
                              5.56 vs. 308? http://www.calguns.net/calgunforum/s...d.php?t=267737
                              Originally posted by Cali-Shooter
                              You are not a mall ninja. You are a defender of mall ninjas.

                              Comment

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