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Help adjusting marlin 30 30 IRON sights.

Discussion in 'Rifle Country' started by Zack, Mar 3, 2010.

  1. Zack

    Zack member

    Could someone help me adjust my marlin 30 30 IRON sights? I have no clue how to do it, I tryed to push the plastic tab and it wouldnt move:fire: I pulled the little tab up for the sight and tryed to move it to and nothing moved:banghead: Please could someone tell me how to move the sights? It wont budge... :confused:

    LEVRLOVR Well-Known Member

    Windage (left to right) or elevation (up and down)?

    Take a plastic or wooden mallet and a wooden dowel and tap the base of the rear sight where it fits in the dove tail of the barrel. Tap it in the direction you want to move the bullet on the target.

    For elevation, move the ladder elevator on the rear sight up or down, again in the direction you wish to move the bullet on the target.
  3. schlockinz

    schlockinz Well-Known Member

    Remove the sight and put on a peep. So much easier to shoot.
  4. Murphys Law

    Murphys Law Well-Known Member

    I agree with Schlockinz, but if your talking about the rear sight for elevation? Grasp the rear sight blade and lift it up slightly. Just enough to take tension off of the tab and the tab should slide forward and back. I could be wrong but it sounds like you need a third hand or are trying to hold the rifle while performing this. If the tension is off of it and its still stuck, mount the gun in a padded vice (padded to protect the finish of your rifle) and try tapping it lightly to get it to move while hold the sight blade up off the notches. Hope this isn't to confusing. Just a question to others reading this, are they using plastic for that now? My old ones are made of steel. Maybe that part can be retrofitted to a steel one?
  5. Abel

    Abel Well-Known Member

    Exactly. And to adjust for windage, you'll need to move/drift the front and/or rear sight right or left in its dovetail base with a rubber/wood mallot and a poly dowel. In my opinion, it is much easier to install a Williams peep. There are several models to choose from. I like the FP, but the 5D & the Foolproof are just as good.

    Here is a good link on how to tinker with iron sights:


    Here's a pretty straight foward/simple peep:

  6. ronto

    ronto Well-Known Member

    +1 on the Williams FP...I couldn't hit the broadside of a barn even if I was in the barn with factory irons.
  7. mgkdrgn

    mgkdrgn Well-Known Member

    and yet another peep ....


    I have one of his (barrel mount) on my Rossi M92 ... a WORLD better than simple irons.
  8. Uncle Mike

    Uncle Mike Well-Known Member

    If you have a 'spring blade' type rear sight, one that uses a movable little notched sheetmetal ramp, you'll have to remove that ramp first and slip a piece of thin cardboard between the sight blade and the barrel.

    This will keep from scratching the barrel when the sight blade moves.
  9. Ratshooter

    Ratshooter Well-Known Member

    If you are tapping the rear site to one side or the other here is a trick I do. Slip a piece of masking tape or an address label under the point at the front of the site base. Use a fine tipped pen to trace around the point. Now when you tap on the site base you can see how much it moved or if it moved at all. I also mark a line out from the point.

    When these are new they are tight. After they have been moved a couple of times they get easier to move. Also make sure your front site insert is centered in the base or you may end up with the rear site way off to the side.
  10. ArmedBear

    ArmedBear Well-Known Member


    Much better practical accuracy and faster than open sights, easy to adjust, and they don't get in the way like a tang sight or a side-mounted receiver sight. There's not much point to screwing with the elevation of a .30-30 in the field, since you can set the sights for +/- 3" MPBR that is almost the same as the effective range on deer, and also about as far out as you can see well with the stock front sight.

    I just stuck one on my Marlin 39A and it was the difference between "I like this rifle" and I love SHOOTING this rifle!"

  11. Ratshooter

    Ratshooter Well-Known Member

    ArmedBear did you have to install a taller front sight when you switched to the Skinner peep?
  12. ArmedBear

    ArmedBear Well-Known Member

    Not on my 39A. Works great with the stock front sight. My initial pre-range zeroing was done by "co-witnessing" with the existing semi-buckhorn. The peep is at the same elevation as the leaf sight.

    Don't currently own a .30-30, so I can't comment on that. My 1894C shifts all over with different loads, especially hotter ones. I haven't yet decided how to deal with the sights on that. I will either go with a Skinner and one load (may require a higher front sight, but so does the stock sight -- the gun shoots high with .357 full-house loads, at the very bottom of the rear sight adjustment), or something click-adjustable if I can find something I like. That's not as good for rough use, of course.
    Last edited: Mar 5, 2010

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