what is the TPI of scope base screws for a Remington 700 action

Discussion in 'Main Message Board' started by PestShooter, Jun 29, 2008.

  1. PestShooter

    PestShooter

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    What is the TPI of the scope base screws for a Remington 700 short action? They must be metric. I can not find a darn screw in MI for my picatinny base.
     
  2. FroggyOne2

    FroggyOne2

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    I have some.. will send them to ya.. PM me with your address..

    Randy
     
  3. FroggyOne2

    FroggyOne2

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    He don't have to ask his local shop for some.. I have plenty and will send him some.. no cost..

    Randy
     
  4. koger

    koger

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    Rem. Scope base and sight screws are std. 6/48 gun screw threads, any shop should have them.
     
  5. Cheechako

    Cheechako

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    Careful Samuel. I made the same reply yesterday and was taken to task. I deleted mine.

    Ray
     
  6. FroggyOne2

    FroggyOne2

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  7. FroggyOne2

    FroggyOne2

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    there on the way..
     
  8. FALPhil

    FALPhil

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    Ray, I'd be interested in why you were taken to task. I have 3 Remington bolt rifles, each one is a different model number, and each one has the standard 6-48 threads for the base mounting holes. AFAIK, that is the standard on Remingtons, unless it is a special application or the gun has been altered by someone.

    ..Phil
     
  9. Cheechako

    Cheechako

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    Phil

    Sent you a PM. No need to hash this out on the Forum. More of a misunderstanding than anything. I should have kept my mouth shut.

    Ray
     
  10. habu

    habu

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    tres,

    do you mean 4-40, not 8-40? thought it went 8-56, 6-48, 4-40,
    won't an 8-40 be a bit small for a scope mounting?

    ron
     
  11. Cheechako

    Cheechako

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    Well, here I go getting involved again.

    The first number in a screw size is the diameter of the screw and the second number is the TPI,threads per inch).

    The smaller the first number, the smaller the screw. So, a 4-40 is a lot smaller than an 8-40 even though they both have 40 TPI.

    AFAIK all Remington actions are factory drilled and tapped for 6x48 scope and sight mounting screws.,As are most other actions as well). On heavy recoiling rifles, some shooters will have the screw holes enlarged to 8-40 figuring that the bigger screws will have greater holding power.

    And that's all I know about that. :) :)

    Ray
     
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  12. PestShooter

    PestShooter

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    Do bigger screws really give more strength or is there no difference?
     
  13. Cheechako

    Cheechako

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    Many shooters believe so. But I've always been a skeptic and I've never had a rifle with anything bigger than 6x48.

    My thinking is that if 3 or 4 #6 screws shear off from recoil . . .:eek:

    But, others will disagree and now we'll hear from them.

    Ray
     
  14. habu

    habu

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    ray,
    thanks for the info!

    that's what i get for being a 'shade tree' gun plumber.

    ron
     
  15. Preacher

    Preacher Site $$ Contributor

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    About the only time a 8-40 screw is needed is when the smith needs more money for doing a job that never needed done to begin with...........
    6/48's are the standard gun mounting screws......
     
  16. Jim_Borden

    Jim_Borden

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    Well,
    Since some are so willing to take shots-some clarification is in order.

    for some of us it has nothing to with getting more money--It has to do with total load in holding bases to the action to prevent movement particularly on rifles of heavy recoil and heavy scopes.

    The 8x40 has higher clamping load than a 6x48. Nightforce Scopes, Schmidt and Bender Scopes and Swarovski scopes have high impulse momentum applied to the rings and bases on things such as Ultra Mags and the higher clamping force helps make sure they stay put.

    Jim
     
  17. Preacher

    Preacher Site $$ Contributor

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    I sure never meant any disrespectful shots at anyone, and I also open up 6/48's to 8/40 from time to time when it seems the thing to do heavy recoil wise...
    On most rifles it's not needed as much as some would be led to think, is what I meant......
     
  18. FroggyOne2

    FroggyOne2

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    Just want to say that I got a message from PetShooter and he got them in time.. and were correct for his rail and rifle. I am glad to hear that!
     

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