Results 1 to 6 of 6

Thread: Ring tension when mounting a scope

  1. #1

    Ring tension when mounting a scope

    I have n't mounted a scope for a while. Should the scope just drop into the bases, or should it be a really snug fit where the rings are sprung apart as you screw down the tops? Am mounting a scope and can't help feeling that my rings whilst nominally 1" are a bit on the tight side. A bit of lapping may be needed. Advice please.

  2. #2
    SD Regular
    Join Date
    Dec 2008
    Location
    East Midlands M1/M69 Junction 21
    Posts
    5,388
    If Leupold they should allow the 'scope to drop in! Are you sure your 'scope isn't 26.5mm continental size?

  3. #3
    Have now got out the calipres - the scope tube is 1.036 in diameter, (or 26.04mm) whereas the rings are 0.9955 of an inch - thus a scope that is slightly over 1" going into rings slightly less than 1". I will try giving them a wee bit of lapping to a) ensure they are aligned and b) so they are not quite so tight on the scope.

  4. #4
    Quote Originally Posted by Heym SR20 View Post
    Have now got out the calipres - the scope tube is 1.036 in diameter, (or 26.04mm) whereas the rings are 0.9955 of an inch - thus a scope that is slightly over 1" going into rings slightly less than 1". I will try giving them a wee bit of lapping to a) ensure they are aligned and b) so they are not quite so tight on the scope.
    That's a lot of work and trouble to go to to make a scope fit the wrong size rings. If it is a 26mm scope buy 26mm rings.

  5. #5
    Spent a happy hour this morning with a lapping bar and some some slurry off an oil stone. Lapped the rings so still firm but not overly tight, but good contact all round. By applying a bit of pressure to one side was able to lap the ring so that the scope was perfectly centered with the bore. So my old Brno Mod 2 is now mounted with a nickel marburg 1-4 x 20 scope rather than the cheap Chinese rubbish I put onten years ago. Should be great for rabbits. Now all I need is to get a pair of blank rings from reknagel and cut some claw mounts so when I gowild boar hinting I can fit it on 7x65r in place of the current zeiss 6x42. That will be a bigger job though.

  6. #6
    Quote Originally Posted by Heym SR20 View Post
    Spent a happy hour this morning with a lapping bar and some some slurry off an oil stone. Lapped the rings so still firm but not overly tight, but good contact all round. By applying a bit of pressure to one side was able to lap the ring so that the scope was perfectly centered with the bore. So my old Brno Mod 2 is now mounted with a nickel marburg 1-4 x 20 scope rather than the cheap Chinese rubbish I put onten years ago. Should be great for rabbits. Now all I need is to get a pair of blank rings from reknagel and cut some claw mounts so when I gowild boar hinting I can fit it on 7x65r in place of the current zeiss 6x42. That will be a bigger job though.
    I'm considering this now. What's a lapping bar? I have a 25mm ground steel bar, will that do?
    "A man can never have too much red wine, too many books, or too much ammunition." -- Rudyard Kipling

Similar Threads

  1. scope mounting issues
    By Nick Fahey in forum Deer Stalking General
    Replies: 9
    Last Post: 09-09-2010, 09:30
  2. Neck Tension
    By willie_gunn in forum Ammunition, Reloading & Ballistics
    Replies: 9
    Last Post: 09-04-2010, 14:29
  3. Scope mounting systems
    By mickthebrick in forum Equipment & Accessories
    Replies: 15
    Last Post: 22-03-2010, 05:56
  4. Scope ring heights
    By 223 in forum Deer Stalking General
    Replies: 1
    Last Post: 20-03-2010, 00:16
  5. 1 inch ring scope mounts for .22Rf or similar.
    By stag1933 in forum Deer Stalking Equipment
    Replies: 0
    Last Post: 16-01-2010, 13:09

Posting Permissions

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