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My new Rock River National Match A4 showed up

Discussion in 'Black Rifle Forum' started by ithaca_deerslayer, Nov 5, 2012.

  1. smokin762


    Apr 19, 2009

    I found my few seconds of fame. I was looking around YouTube for some SAFS videos and I found myself riding on one of the trailers in the beginning SAFS trailer.

    This was before I lost 50 lbs. :wow::embarassed:

    [ame=""]CMP SAFS 2010 trailer - YouTube[/ame]


    May 28, 2010
    EAST HAVEN, CT.06513
    Dude. You need to Match the bullet weight to the twist rate in order to get and obtain the best accuracy from this rifle. It also needs to be broken in properly if you want it to shoot it's best. Read up on breaking in a new rifle/barrel. I would personally recommend 68/69 & 70 gr bullets for best if not maybe even the 77 Gr will be best. You have to experiment and try all kinds of loads & bullets,powders etc before you can really find out what your gun likes. You have to do your homework or you'll never really know. I have an original Colt H-Bar with a 1-7 twist. It likes nothing better than the heavier bullets,68-69 etc gr.s and believe it or not at the time i got best results using Winchester 748 ball powder. So good luck and give it hell. Regards,Rick Sr.

  3. White shirt and hat, dark pants, dark scruff on your chin?
  4. Thanks, I'll keep that in mind. I ordered a scope mount so I can test the gun out. Without a scope, I could shoot .204 Ruger through it and not notice a difference in my shots :)
  5. What scope should I put on this rifle?
  6. Brian Brazier

    Brian Brazier

    Jan 20, 2009
    Seattle, WA
    I want another 20" I had one a few years ago but had to sell it.
  7. smokin762


    Apr 19, 2009
    No. I was a different guy. :supergrin:
  8. Here it is with a Rock River 1 piece scope mount and Leupold AR 3-9x40mm :)

    Last edited: Nov 14, 2012
  9. I also got some screw in apertures from Bushmaster, which are threaded the same.

    Rock River has two hooded choices, the .030" that came with mine and is too small for me to see well out of, and a .040". With either of those, you can't use the 2nd larger aperture that is there and would flip up but is blocked by the match hood.

    The hooded aperture screws out, and can be replaced by a RR different size, or a Busmaster. The nice thing (for my purpose) about the Bushmaster ones is they come in either hooded or flush like a button. With the flush one screwed into the threaded aperture hole, you can also flip up and use the second much larger stock aperture that comes with the RR national match sight. I ordered a .040 and .052 and liked the .052 so have that currently screwed into my carry handle sight. I don't know what the large hole aperture is, but I'm guessing something like .125 or maybe .200 :)

    Anyone know what size the apertures typically are on an M-16?
    Last edited: Nov 15, 2012
  10. LA_357SIG

    LA_357SIG Milspectacular

    Aug 28, 2006
    Not Los Angeles.
    You are a more dedicated shooter than I am. I got an A2 upper receiver with a NM rear sight and an A1 upper receiver with an A1 aperture and I replaced them both with A2 apertures. I couldn't allow myself to "try something new." They were just too small for my comfort.
  11. Big Bird

    Big Bird NRA Life Member

    Aug 7, 2003
    Louisville KY
  12. joe0121


    Nov 12, 2012
    When I was in the Marine Corps I put four dots on the rear site to act as a reference point for aligning the front site post. Now a days Troy makes a rear site with the same idea. I suppose it hind sight it is not possible to have placed those four dots exactly correct without cant.
    But I qualed Expert all three times I went. And Only missed twice from 500 yards (both in boot camp) My problem came at the 200 standing a few times as the front site transitioned off target I couldn't keep the trigger pressed and held at the same spot and I would flinch or something and send a not so well aim shot exactly 6 inches low.

    Trigger control on the Ancient M-16 A2's was a difficult proposition at best. Seems like the weapons I was issued had trigger made out of sand paper. I got out in '07 and I understand the new A4's have much better triggers.

    Back then they taught us to center the front site on the target but I always used the lolipop method anyways. Hard to focus on a black front site against a black target.
  13. smokin762


    Apr 19, 2009

    Very nice. :thumbsup:
  14. Thanks, that's good info.

    I like the white dot idea, too.
  15. Getting better with it, got a couple groups under an inch.

    Next time I bench it I'll sandbag it front and back. Here's some targets just resting the front. Feel like I'm not holding steady enough and still moving the scope around too much.

  16. Did some more shooting today with the Black Hills match HP 77 gr. At 100 yards put 5 into a nice 7/8" group, same low point of aim as yesterday's group.

    Then raised it up to get on target and establish my zero for this load. My crappy shooting opened the group up to 1.25", but it is now on target :)

    Next, shot a group at 200 yards, keeping my established 100 yard zero. Bullet doesn't drop much. With practice I'll play with keeping the 100 yard zero as baseline, and learning how many clicks to go up for each distance.

    I want to get some more of this ammo. Not sure if it is what my gun likes best, but 7/8" groups aren't too bad so far for my lack of shooting skills :)

  17. Shot my best group ever. 1/2" from 100 yards. Decided to try 52gr match hp from Black Hills. This is my first group. High because I was zeroed for 77 grain. I've never shot a group this small before with any rifle. The dime actually covers all the holes :)


    After zeroing and shooting a total of 5 groups at this distance the average size was .975". I'm sure I'm the weak link, but my gun does seem to like this ammo just a little better than the 77gr which averages around 1.125". Again, this is with me as the shooter. You could do better :)
    Last edited: Dec 9, 2012
  18. Also shot 1 group of 52gr at 200 yards, after zeroing at 100 yards. At 1 7/8", this probably the best 200 yard group I've ever shot. Doesn't drop much at this distance. I've got to get more of this ammo and see if the right drift is me or if I can tighten it more toward the center :)

  19. I_D, that's mean. That's just mean man. The brand whores are going to soil their undies.

    IMO, that's good accuracy. Of course with a Noveske or Colt, you can shoot east, the bullet will circumnavigate the globe and come out of the west and hit the target in the same hole, but that's not bad for a 27th tier rifle.

    I wonder if a stronger scope would tighten them up? I have a Leupold scope that size, and the size of the crosshairs are bigger than the target. Not extremely precise at those ranges.
    Last edited: Dec 9, 2012