Page 1 of 5 1 2 3 4 5 LastLast
Results 1 to 10 of 49

Thread: Finished 80% cast receiver!!!!!!! by hand

  1. #1
    GuncoHolic Sprat's Avatar
    Join Date
    Feb 2005
    Location
    Florida
    Posts
    3,821
    Feedback Score
    5 (100%)

    Default Finished 80% cast receiver!!!!!!! by hand

    Hi

    As I posted below I have completed a 70-80% receiver blank by century, I did this build by hand tools, these included a dremel, drill (cord), series of files-flat and round fine to bastard, levels, taps, cutoff wheels(stock up), grining stones, heavy vise. no milling machines no lathes or drill press. blueprints and downloaded posts by others from roderus

    I will post the pictures in a few days, I have not cut the charging handle slot because I may relocate the charging handle.

    this build should fire and feed fine. I am going to the range this week with a sub-caliber device 32acp in 308 adapter to fire function test. then the following week weak reloads very weak reloads

    more to come

    sprat

  2. #2
    Gunco Regular voland's Avatar
    Join Date
    May 2005
    Posts
    401
    Feedback Score
    11 (100%)

    Default

    Got some pictures, also how did you heat treat.

    Quote Originally Posted by Sprat
    Hi

    As I posted below I have completed a 70-80% receiver blank by century, I did this build by hand tools, these included a dremel, drill (cord), series of files-flat and round fine to bastard, levels, taps, cutoff wheels(stock up), grining stones, heavy vise. no milling machines no lathes or drill press. blueprints and downloaded posts by others from roderus

    I will post the pictures in a few days, I have not cut the charging handle slot because I may relocate the charging handle.

    this build should fire and feed fine. I am going to the range this week with a sub-caliber device 32acp in 308 adapter to fire function test. then the following week weak reloads very weak reloads

    more to come

    sprat

  3. #3
    Chief Administrator 7.62x39's Avatar
    Join Date
    Feb 2004
    Posts
    6,623
    Feedback Score
    10 (100%)

    Default

    By hand, wow that takes some patience. My hat's off to you.

    What plan did you end up using? I always heard the biggest hurdle in FAL 80%ers was the lack of the availability of accurate plans
    .

  4. #4
    Always sore, always tired Bradrock's Avatar
    Join Date
    Feb 2005
    Location
    Missouri/ Ark border
    Posts
    6,130
    Feedback Score
    23 (100%)

    Default

    When will the step by step DVD be available??


    That's a project you should be real proud of! Congrats!
    " Save a tree...........Eat A Beaver!"

  5. #5
    Happy Camper hcpookie's Avatar
    Join Date
    Feb 2004
    Location
    Colorado Springs
    Posts
    7,702
    Feedback Score
    3 (100%)

    Default

    That is impressive - my hat's off to you!

    Ditto on the questions:

    1. How did you heat treat?

    2. What plans did you follow, if any?
    Gunco Member #10

    http://pookieweb.net


    The "original" Boltcutter Rivet Squeezers:
    http://pookieweb.net/AK/rivet/boltcutters/boltcutter.htm


    Project Pink - the Pink and Blue AK-74:
    http://pookieweb.net/pink/pink.htm

  6. #6
    Indian Admin Winn R's Avatar
    Join Date
    Feb 2004
    Location
    About 40 mi. north of Atlanta.
    Posts
    5,940
    Feedback Score
    18 (100%)

    Default

    I want to ditto interest in this.
    There is no nonsense so errant that it cannot be made the creed of the vast majority by adequate governmental action. -- Bertrand Russell


    "Never attribute to malice that which can be adequately explained by stupidity." Robert J. Hanlon

  7. #7
    GuncoHolic Sprat's Avatar
    Join Date
    Feb 2005
    Location
    Florida
    Posts
    3,821
    Feedback Score
    5 (100%)

    Default

    Can it be done??? I did it!!!!

    I test fired my century casting that I finished 70% to almost 95%

    I loaded 1 weak reloads into the chamber. pulled the bolt catch and she locked up fine, with a coathanger and gun rest. I pulled trigger and low and behold no blown receiver, no cracks no deforms of any kind and I didn't loose any JB

    but the primers came out and out the bottom of the mag well FLAT, case didn't eject ( gas valve not set) the neck was fire formed for a new caliber

    Yes I know I am a smith excessive headspace and no I didn't headspace before hand.( bad habit building AK's) I will have to thread deeper about a half turn

    To all my non friends here I was not hurt sorry to disappoint you!!!! you know who you are

    when I loaded the 5 round in the mag ,she locked up tight, the pressure was high enough to blow the bottom of austrian mag out got to get that gas valve set

    As of now I am the only person to have build a 70% FN FAL to fire function on all the sites I have checked

    good luck with your castings

    sprat
    Sprat and sprat1 are one and the same.

  8. #8
    Happy Camper hcpookie's Avatar
    Join Date
    Feb 2004
    Location
    Colorado Springs
    Posts
    7,702
    Feedback Score
    3 (100%)

    Default

    My question still stands, what heat treat method did you use? It's my understanding that FALs require specific heat treatment methods.
    Gunco Member #10

    http://pookieweb.net


    The "original" Boltcutter Rivet Squeezers:
    http://pookieweb.net/AK/rivet/boltcutters/boltcutter.htm


    Project Pink - the Pink and Blue AK-74:
    http://pookieweb.net/pink/pink.htm

  9. #9
    GuncoHolic Sprat's Avatar
    Join Date
    Feb 2005
    Location
    Florida
    Posts
    3,821
    Feedback Score
    5 (100%)

    Default

    I have not heat treated the receiver as of yet, I was very concerned about this constant reference to blowing up the receiver from the beginning( I mean since 2003 when the first attempts were made to work these up over at RODERUS)
    In fact some pictures for this build can be found in the FAL build section on roderus.

    back to the heat treatment, after 5 shots of weak 308 there were no cracks, believe it maybe like the AK the barrel and bolt take the beaten, and yes 308 is hotter than 7.62 X 39mm
    ok back to your question, bob at (a well known 80% receiver company) offered to assist me there, he nows of a facility to handle the project ( personnally I think its him)
    post shooting examination revealed the jb touch up in the feeding ramp area was still in place I am wondering about the heat treatment

    also two things to look out for the front of the casting is off to the left a bit. this must be compensated for.
    also the feeding ramp is going to be a problem as are factory finished century receivers ( some rounds feed into the barrel base instead of the chamber. this is a common complaint on the fal files

    I will answer any question on this build as long as it civil
    sprat
    Sprat and sprat1 are one and the same.

  10. #10
    Happy Camper hcpookie's Avatar
    Join Date
    Feb 2004
    Location
    Colorado Springs
    Posts
    7,702
    Feedback Score
    3 (100%)

    Default

    That's pretty cool! I know these need the heat treat based on the threads I've read, and let's not forget DSArms' treatment of the issue. I think they had some blow-up pics on their site, but I don't really remember that far back.

    Where do you find the castings these days? I saw one at a gun show one time, but that's the only one I've seen.
    Gunco Member #10

    http://pookieweb.net


    The "original" Boltcutter Rivet Squeezers:
    http://pookieweb.net/AK/rivet/boltcutters/boltcutter.htm


    Project Pink - the Pink and Blue AK-74:
    http://pookieweb.net/pink/pink.htm

Page 1 of 5 1 2 3 4 5 LastLast

Search tags for this page

There are currently no search engine referrals.
Click on a term to search our site for related topics.

Posting Permissions

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