Results 1 to 12 of 12

Thread: Firing pin spring

  1. #1
    Join Date
    May 2015
    Posts
    75

    Firing pin spring

    I need a new spring ( I think) but I am unsure how to measure the tension correctly. This is a Hall action. I took a empty 308 case and put the firing pin end inside. Pressing on the shroud it takes 17 lbs and the cocking piece starts to lift. At full cocking position its around 19 lbs maybe 20 at most. The spring is 15 yrs old. That being said its adjustable with a threaded trunnion and I can get it to 24lbs if I reduce its un cocked length by about 1/2 in. It looks to be a Remington spring. Same outside diameter and .050 wire diameter. Should I buy a 24 or 28 lb spring or just shorten the adjustment to give more tension? Im thinkin a 28.

    Wallydog

  2. #2
    Join Date
    Feb 2003
    Location
    Melbourne, AUSTRALIA
    Posts
    94

    Time for a new Spring!

    Quote Originally Posted by WallyDog View Post
    I need a new spring ( I think) but I am unsure how to measure the tension correctly. This is a Hall action. I took a empty 308 case and put the firing pin end inside. Pressing on the shroud it takes 17 lbs and the cocking piece starts to lift. At full cocking position its around 19 lbs maybe 20 at most. The spring is 15 yrs old. That being said its adjustable with a threaded trunnion and I can get it to 24lbs if I reduce its un cocked length by about 1/2 in. It looks to be a Remington spring. Same outside diameter and .050 wire diameter. Should I buy a 24 or 28 lb spring or just shorten the adjustment to give more tension? Im thinkin a 28.

    Wallydog
    Time to put a new spring in at 15yrs old. Aim for 22-24lb in cocked position, assuming pin fall is around .240
    I would contact Allan Hall at http://www.hallmfg.com/hall-actions/...e-actions.html and ask him about a new spring and what it should be.
    One thing I do know is you won’t get 24lb from a 0.050 wire spring, but your 19-20lbs is what I would expect.

    Michael

  3. #3
    Join Date
    May 2015
    Posts
    75
    Quote Originally Posted by Michael Huebner View Post
    Time to put a new spring in at 15yrs old. Aim for 22-24lb in cocked position, assuming pin fall is around .240
    I would contact Allan Hall at http://www.hallmfg.com/hall-actions/...e-actions.html and ask him about a new spring and what it should be.
    One thing I do know is you won’t get 24lb from a 0.050 wire spring, but your 19-20lbs is what I would expect.

    Michael
    I checked a short action BDL spring and it was 22 lbs or therebouts. I ordered the 24 from Wolff and will shorten it as needed to get 24-27 lbs. Im using a highly accurate scale I got at a garage sale for 3 bucks. lol

  4. #4
    Join Date
    Feb 2003
    Location
    Des Moines, IA
    Posts
    1,454

    be aware

    Quote Originally Posted by WallyDog View Post
    I checked a short action BDL spring and it was 22 lbs or therebouts. I ordered the 24 from Wolff and will shorten it as needed to get 24-27 lbs. Im using a highly accurate scale I got at a garage sale for 3 bucks. lol
    that depending on the age of your Hall, you may have to drill out a blind roll pin to get the cocking piece loose. I have rebuilt 4 Halls, from srl. #79 to srl. # 877. All of them had the blind pin and were a ROYAL PIA to get disassembled. Alan was not one to use doubled setscrews
    David

  5. #5
    Join Date
    Feb 2003
    Location
    Lower Dakota Territory
    Posts
    1,889
    Listen to Dave. The man knows his Halls. -Al

  6. #6
    Join Date
    May 2015
    Posts
    75
    Quote Originally Posted by David Halblom View Post
    that depending on the age of your Hall, you may have to drill out a blind roll pin to get the cocking piece loose. I have rebuilt 4 Halls, from srl. #79 to srl. # 877. All of them had the blind pin and were a ROYAL PIA to get disassembled. Alan was not one to use doubled setscrews
    David
    I said it was a Hall action David but in fact I loosely copied a Hall and made it myself. I used double set screws instead. Its made from 17-4 PH stainless but the cocking piece is 4150 at around 45 RC. It shot great when I first built it but unexplained flyers started to make me think it needs a new spring. Sounds anemic when dry firing if that makes any sense. I think its weak and may account for the surprise flyers. Couldn't be me.lol
    Wallydog

  7. #7
    Join Date
    Feb 2003
    Location
    Des Moines, IA
    Posts
    1,454

    thaks Al

    Quote Originally Posted by Al Nyhus View Post
    Listen to Dave. The man knows his Halls. -Al
    I appreciate the trust
    David

  8. #8
    Join Date
    Feb 2003
    Location
    Lower Dakota Territory
    Posts
    1,889
    Quote Originally Posted by David Halblom View Post
    I appreciate the trust. David
    Hope all is well with you. I always have an eye open for a .473 small Hall. Sexiest action ever.

    Take care! -Al

  9. #9
    Join Date
    May 2015
    Posts
    75

    Big Difference

    I ended up buying a 24 lb Wolff and installed it after cutting off an inch to fit the Hall. The full spring gave 32 lbs or there bouts. I ended up with 28lbs in the cocked position after trimming it up. Sure made a big difference in the bolt handle stiffness. It gives a very solid click when dry firing now. Im thinking that surely knocked .050 off my 100 yd groups size.. I must say it ought to help ignition.

  10. #10
    Join Date
    Feb 2003
    Location
    Sunbury, Australia
    Posts
    22
    Quote Originally Posted by David Halblom View Post
    that depending on the age of your Hall, you may have to drill out a blind roll pin to get the cocking piece loose. I have rebuilt 4 Halls, from srl. #79 to srl. # 877. All of them had the blind pin and were a ROYAL PIA to get disassembled. Alan was not one to use doubled setscrews
    David
    Thank you David!
    My Hall is S/N 92, I'd read somewhere about double set screws in the cocking piece, but under magnification, it sure looks like a roll pin.
    I might be able to diss assemble it now.

  11. #11
    Join Date
    Feb 2003
    Location
    VA
    Posts
    967
    I owned one Hall, a S model that was new. It had double set screws.

  12. #12
    Join Date
    Feb 2003
    Location
    Poetry, Tex.
    Posts
    6,631
    I would like a Hall falling block. I know of one new receiver, but it ain't for sell.

Posting Permissions

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