+ Reply to Thread
Results 1 to 8 of 8

Thread: Model of 1917 chamber length

Click here to increase the font size Click here to reduce the font size
  1. #1
    Legacy Member Griff557's Avatar
    Join Date
    Jun 2017
    Last On
    01-31-2022 @ 04:29 PM
    Location
    Grand Rapids MN
    Posts
    15
    Local Date
    03-28-2024
    Local Time
    12:15 PM

    Model of 1917 chamber length

    Been playing with my Win Model of 1917 trying to get it to shoot better original 10/17 barrel ME one plus throat is about the same the crown is good but the bore is really dirty but appears to be cleaning up. Out of curiosity I tried a un scientific way of measuring the chamber length. I closed the Bolt and slid a 1/4" wooden dowel down the barrel until touched the Bolt face and made a mark then I opened the Bolt slid just a 150gr bullet into the chamber until it made contact with the rifling and then re-inserted the dowel until it touched the bullet and made a mark it measures 3.30" between the marks which seems pretty tight to me. Anyone else tried this
    Information
    Warning: This is a relatively older thread
    This discussion is older than 360 days. Some information contained in it may no longer be current.

  2. # ADS
    Friends and Sponsors
    Join Date
    October 2006
    Location
    Milsurps.Com
    Posts
    All Threads
    A Collector's View - The SMLE Short Magazine Lee Enfield 1903-1989. It is 300 8.5x11 inch pages with 1,000+ photo’s, most in color, and each book is serial-numbered.  Covering the SMLE from 1903 to the end of production in India in 1989 it looks at how each model differs and manufacturer differences from a collecting point of view along with the major accessories that could be attached to the rifle. For the record this is not a moneymaker, I hope just to break even, eventually, at $80/book plus shipping.  In the USA shipping is $5.00 for media mail.  I will accept PayPal, Zelle, MO and good old checks (and cash if you want to stop by for a tour!).  CLICK BANNER to send me a PM for International pricing and shipping. Manufacturer of various vintage rifle scopes for the 1903 such as our M73G4 (reproduction of the Weaver 330C) and Malcolm 8X Gen II (Unertl reproduction). Several of our scopes are used in the CMP Vintage Sniper competition on top of 1903 rifles. Brian Dick ... BDL Ltd. - Specializing in British and Commonwealth weapons Specializing in premium ammunition and reloading components. Your source for the finest in High Power Competition Gear. Here at T-bones Shipwrighting we specialise in vintage service rifle: re-barrelling, bedding, repairs, modifications and accurizing. We also provide importation services for firearms, parts and weapons, for both private or commercial businesses.
     

  3. #2
    Contributing Member fjruple's Avatar
    Join Date
    Dec 2006
    Last On
    10-29-2023 @ 04:38 AM
    Location
    New Jersey, USA
    Posts
    1,021
    Real Name
    Franklin Ruple
    Local Date
    03-28-2024
    Local Time
    02:15 PM
    Griff557--

    You need a throat erosion gauge to check and see how bad it is. Another quick way is to take an empty .30-06 shell case (NOT LOADED) split the neck on opposite sides. Than gently seat by hand a bullet into the mouth of the split case. Than ease the case with bullet into chamber of your rifle until the action is closed. Very gently open the action and extract the cartridge out the rifle. The rifling in the barrel will push the bullet back into the case until the action locked. That should give you an idea of the length of the leads in the rifling. The cartridge length will be different between bullet designs.

    --fjruple

  4. Avoid Ads - Become a Contributing Member - Click HERE
  5. #3
    Legacy Member Griff557's Avatar
    Join Date
    Jun 2017
    Last On
    01-31-2022 @ 04:29 PM
    Location
    Grand Rapids MN
    Posts
    15
    Local Date
    03-28-2024
    Local Time
    12:15 PM
    Thread Starter
    I've checked the throat with a gauge it measures just a bit over 1 what I was trying to do was get an idea of what C.O.A.L to load without pushing the bullet into the rifling

  6. #4
    Contributing Member fjruple's Avatar
    Join Date
    Dec 2006
    Last On
    10-29-2023 @ 04:38 AM
    Location
    New Jersey, USA
    Posts
    1,021
    Real Name
    Franklin Ruple
    Local Date
    03-28-2024
    Local Time
    02:15 PM
    Quote Originally Posted by Griff557 View Post
    I've checked the throat with a gauge it measures just a bit over 1 what I was trying to do was get an idea of what C.O.A.L to load without pushing the bullet into the rifling
    Griff557--

    By checking the leads with the actual bullets that you are going to use and backing off a faction of an inch will get you the best results for setting up the cartridges that you intent to use in your rifle.

    --fjruple

  7. #5
    Advisory Panel browningautorifle's Avatar
    Join Date
    Jul 2008
    Last On
    Today @ 01:16 PM
    Location
    Victoria BC
    Posts
    29,838
    Real Name
    Jim
    Local Date
    03-28-2024
    Local Time
    11:15 AM
    Quote Originally Posted by Griff557 View Post
    an idea of what C.O.A.L to load without pushing the bullet into the rifling
    Another seated a bullet in a case and used black marker to see when it touched the commencement of rifling. Just start long and keep pushing it into the case until the marker comes out untouched.
    Regards, Jim

  8. #6
    Legacy Member Griff557's Avatar
    Join Date
    Jun 2017
    Last On
    01-31-2022 @ 04:29 PM
    Location
    Grand Rapids MN
    Posts
    15
    Local Date
    03-28-2024
    Local Time
    12:15 PM
    Thread Starter
    Quote Originally Posted by browningautorifleicon View Post
    Another seated a bullet in a case and used black marker to see when it touched the commencement of rifling. Just start long and keep pushing it into the case until the marker comes out untouched.
    That's where Iam headed next...I think my theory of measuring the chamber was ok but the execution probably wasn't as accurate as it should've been. Using a Hornady 150gr flat base bullet I only came up with a C.O.A.L of 3.30" I have to believe the chamber is longer than that

  9. Thank You to Griff557 For This Useful Post:


  10. #7
    Legacy Member Griff557's Avatar
    Join Date
    Jun 2017
    Last On
    01-31-2022 @ 04:29 PM
    Location
    Grand Rapids MN
    Posts
    15
    Local Date
    03-28-2024
    Local Time
    12:15 PM
    Thread Starter
    So I put magic marker on some Hornady 168 HPBT I had loaded C.O.A.L 3.304" and eased them into the chamber and closed the bolt when I extracted them I could see very light rifling marks on the shoulder of the bullet....answered my own question-I think

  11. #8
    Legacy Member oldfoneguy's Avatar
    Join Date
    Oct 2015
    Last On
    Today @ 10:42 AM
    Location
    long island, ny
    Posts
    561
    Real Name
    Bill
    Local Date
    03-28-2024
    Local Time
    01:15 PM
    SAAMI COL for 30-06 is 3.340 max. If you have to make the round any longer than that for a milsurp you have a seriously worn throat and will never have good accuracy.

    Serious bench rest shooters with high end custom barrels play with their cartridge lengths and create rounds that can't be used in any other rifle than the one the round was built for. That's not the way a military rifle works. They are designed to use a round coated in mud so the chambers and the throats are always a little oversized. For that reason some freebore is built into them and you will always get more brass swell and stretch than a commercial chamber. - Bill

+ Reply to Thread

Similar Threads

  1. S&W Model 1917
    By Anzac15 in forum Milsurps General Discussion Forum
    Replies: 7
    Last Post: 10-19-2015, 04:24 PM
  2. model of 1917
    By bauzer in forum Pattern 1913/1914 and M1917 Rifles
    Replies: 4
    Last Post: 12-18-2014, 12:42 PM
  3. Bolt on Eddystone 1917 wont chamber a round?
    By goessb170677 in forum Pattern 1913/1914 and M1917 Rifles
    Replies: 41
    Last Post: 09-28-2014, 05:55 PM
  4. (model 30) Sort of a model 1917
    By Kleanbore1 in forum Pattern 1913/1914 and M1917 Rifles
    Replies: 2
    Last Post: 05-07-2009, 07:57 PM

Tags for this Thread

Posting Permissions

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