Pennsylvania Firearm Owners Association
Page 3 of 3 FirstFirst 123
Results 21 to 24 of 24
  1. #21
    Join Date
    Nov 2007
    Location
    Belly of the BEAST, Pennsylvania
    (Montgomery County)
    Posts
    1,131
    Rep Power
    19678815

    Default Re: Anyone assembled a dedicated .22LR upper?

    Ive seen and purchased aguila and cci for $20 for 500 rounds.
    Whats the problem?
    Damn near the same prices i see for golden bullets.

  2. #22
    Join Date
    Feb 2010
    Location
    Levittown, Pennsylvania
    (Bucks County)
    Posts
    7,641
    Rep Power
    21474853

    Default Re: Anyone assembled a dedicated .22LR upper?

    Put a piece of 1200 on a .22 bronze brush, chucked it up and did the chamber, and did the rim of the mouth. The wide abrupt band on the ammo may be it. Gonna try other brands. I manually cycled it slowly, and saw how the cartridge is meant to feed. Gouging of the fail-to-feed bullet tells of something different happening when it fails to function. Could be a matter of timing caused by as yet undetermined problem.

    With anything mechanical, try the easy stuff first. Ammo.

    Thanks!
    Legislating to prevent people's acts is fantasy

  3. #23
    Join Date
    Feb 2010
    Location
    Levittown, Pennsylvania
    (Bucks County)
    Posts
    7,641
    Rep Power
    21474853

    Default Re: Anyone assembled a dedicated .22LR upper?

    Just came across something to think about. Guy was having reliability problems, someone suggested that a .22 blow-back bolt is held forward by the hammer and the spring tension of the hammer along with the bolt spring. Guy changed hammer and hammer spring configuration and that was the answer. Presently, my hammer is the poly .22 hammer supplied with the Frontier lower.

    I've been wondering about the timing, and this would be a way to adjust it.

    ETA- Installed steel FCG and a stiffer hammer spring. Improved function, ammo still shaving. Gonna buy a few varieties of ammo and see if that helps.

    The thing that bugs me is, there are reports from owners who claim theirs will digest anything they feed it. That's where I want to be.
    Last edited by Bang; December 3rd, 2019 at 01:50 PM.
    Legislating to prevent people's acts is fantasy

  4. #24
    Join Date
    Feb 2010
    Location
    Levittown, Pennsylvania
    (Bucks County)
    Posts
    7,641
    Rep Power
    21474853

    Default Re: Anyone assembled a dedicated .22LR upper?

    Success! Fired 100 CCI standard velocity without a hiccup. Fired 40 Federal, no problem. Fired 10 Golden, no problem.

    I had applied Pro-Gold grease to all mating surfaces that move. It was either that, or there is some cred to the break-in theory, or both.

    Anyway, I am so happy that this build works so well. It seems accurate, too. Didn't shoot from bags on a bench, shot between the wiggles on a pistol range, and got good ragged groups.

    Thanks to all who took interest in it.
    Legislating to prevent people's acts is fantasy

Page 3 of 3 FirstFirst 123

Similar Threads

  1. AR-15: .22LR conversion kit vs. dedicated .22LR upper
    By BerksCountyDave in forum General
    Replies: 6
    Last Post: April 13th, 2009, 09:40 AM
  2. wtb dedicated 22lr upper
    By continental in forum General
    Replies: 0
    Last Post: September 22nd, 2008, 09:08 PM
  3. WTB: AR 22lr dedicated upper
    By continental in forum General
    Replies: 1
    Last Post: July 1st, 2008, 07:50 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Local gun shops | Local shooting ranges | Philadelphia Shooting Ranges | Philadelphia Gun Shops | Pittsburgh Shooting Ranges | Pittsburgh Gun Shops