Results 1 to 5 of 5

Thread: Converting Mounts to 8-40

  1. #1
    Basic Member
    Join Date
    Sep 2008
    Location
    SE WY
    Posts
    166

    Converting Mounts to 8-40


    Morning Guys, and happy new year!

    I have an action that has a scope base screw stripped out, so I was going to convert it over to use 8-40 screws. I was wondering if anyone had info on drill bit size to use for the action, but also to enlarge the hole in the bases, both for the larger shank of the screw and the larger diameter of the head.

    Here are the screws and tap I found on Midway:

    http://www.midwayusa.com/viewProduct...tNumber=110607

    http://www.midwayusa.com/viewProduct...tNumber=233454

    Thanks!

    Adam
    Romans 10:9 "That if you confess with your mouth, Jesus is Lord, and believe in your heart that God raised him from the dead, you will be saved."

  2. #2
    Basic Member
    Join Date
    Dec 2006
    Posts
    125

    Re: Converting Mounts to 8-40

    drill size #28 is for the 8-40 theads ,not sure on the screw heads
    112,223,choate uv,nikon 6-18<br />lrpv,204,hs stock,sightron S3 6-24x50<br />12 target,McGowen 6mmbr,SSS hbr,Sightron S3 8-32<br />Mark II,22lr,thumbhole,Tasco 6-24x40<br />11 youth,243,Simmons 2.5-10x50<br />116fcss 30-06<br />12fv,204,VX-3 4.5-14x50

  3. #3
    Team Savage
    Join Date
    Jul 2007
    Location
    Central Kentucky
    Age
    69
    Posts
    1,223

    Re: Converting Mounts to 8-40

    The plug tap works if the holes go all the way through receiver. Need a bottom tap if holes are not all the way through, or if you don&#39;t want to remove barrel to tap the front hole. I believe the screw heads are the same size. #28 drill bit as already suggested.

  4. #4
    Basic Member
    Join Date
    Sep 2008
    Location
    SE WY
    Posts
    166

    Re: Converting Mounts to 8-40

    Thanks for the help guys!
    Romans 10:9 "That if you confess with your mouth, Jesus is Lord, and believe in your heart that God raised him from the dead, you will be saved."

  5. #5
    masterblaster
    Guest
    Cowboy howd you make out with this exercise?

Similar Threads

  1. Converting from .243 to .308
    By snipershark in forum 110-Series Rifles
    Replies: 23
    Last Post: 07-24-2016, 04:27 PM
  2. converting .300 wm to .243 win?
    By blades in forum 110-Series Rifles
    Replies: 7
    Last Post: 03-16-2013, 12:45 PM
  3. Converting 223 to 308 help
    By 51Bravo in forum 110-Series Rifles
    Replies: 16
    Last Post: 12-10-2010, 05:13 PM
  4. Need help converting 204 to 6BR
    By jdw91 in forum 110-Series Rifles
    Replies: 12
    Last Post: 07-19-2010, 08:41 AM
  5. Converting SA to LA
    By nuclabuyer in forum 110-Series Rifles
    Replies: 2
    Last Post: 02-18-2010, 01:40 PM

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
  •