Join TexasGunTalk

What are the common mistakes people make when mounting a scope.

Discussion in 'Gunsmithing' started by Chili Palmer2, Feb 16, 2019.

  1. CyberWolf

    CyberWolf Active Member

    225
    255
    63
    Aug 22, 2018
    US
    The FAT Wrench & mini-levels are (cheap) necessities, and I've found this one here to be great for keeping the rifle level during the process...

    https://www.midwayusa.com/product/537916/ctk-precision-all-purpose-gun-level

    Couple other thoughts I hadn't seen mentioned yet are related to scope-mounted levels, uniqueness of body shape related to positioning & scope cant, and a process for fine-tuning the scope level.

    I start off with leveling scope-to-rifle using methods stated previously, but once that's done, use a Plum Bob with a neon-bright line hanging a reasonable distance away (~50y +/-, depending on scope) to set a scope-mounted level as true as possible to both reticle and gravity. (after waiting for line to stabilize)

    Then - depending on the platform/stock, how it sits in the shoulder (from standing/kneeling/prone), and how close-to-true the original rifle-to-scope leveling is, will adjust scope cant in rings as needed to maintain scope level with rifle/natural point of aim (rifle alignment being secondary). This is super easy given the pre-calibrated scope-mounted level; sometimes no adjustment is needed, sometimes it is...

    Here's one I like: https://flatlineops.com/products/levels/recon-34mm


    The reasons for these extra steps is that:

    1. Rifle cant is largely irrelevant outside of maintaining reasonable vertical alignment of the scope/bore centers - what really matters is proper level/alignment of the reticle with gravity (assuming a quality/functional reticle).

    2. Small errors in scope/reticle leveling turn into big misses at-range (if you're never shooting past ~100-200y, this isn't so much of a concern).

    3. Various stocks/profiles will fit-up differently, impacting natural-point-of-aim considerations, and this approach helps to accommodate for keeping a level reticle without having to "muscle-it".
     


  2. Younggun

    Younggun Doer of Deeds TGT Supporter Admin

    47,788
    3,678
    113
    Jul 31, 2011
    hill co.
    Amazing I’ve ever hit anything what with mounting my scopes with a plane old Allen wrench and no fancy kits.


    Sent from my iPhone using Tapatalk
     
    TxStetson and toddnjoyce like this.
  3. easy rider

    easy rider Allotropic Transformer TGT Supporter

    17,122
    8,873
    113
    Jun 10, 2015
    Odessa, Tx
    That's why I said, it's your money do what you want.
     
  4. Dawico

    Dawico TGT Addict

    31,077
    4,782
    113
    Oct 15, 2009
    Lampasas, Texas
    I've seen you shoot. Fancy tools aren't going to help you........
     
    TxStetson likes this.
  5. ROGER4314

    ROGER4314 Been Called "Flash" Since I Was A Kid!

    10,302
    272
    83
    Jul 11, 2009
    East Houston
    Amazing I’ve ever hit anything what with mounting my scopes with a plane old Allen wrench and no fancy kits.

    I was working on a lot of rifles and those mounting kits did the job so well, that the price was worth it. Spread over many jobs, the kits were cheap!

    One thing will never fly..... a come back on a job. Those kits were good insurance that the job was done right. I never trust my eyes to mount a scope. The bubble doesn't lie.

    Dawico- I've seen you shoot. Fancy tools aren't going to help you........ Ouch! Snicker...………….

    Flash
     
  6. Younggun

    Younggun Doer of Deeds TGT Supporter Admin

    47,788
    3,678
    113
    Jul 31, 2011
    hill co.
    I use either a plumb bob or level to make a vertical line on a wall to align the cross hairs properly.

    Never trusted turret caps to be level and have found that a lot of them aren’t. Not due to a twisted reticle, just due to how the cap itself mounts. It’s the best way I’ve found to level the scope.


    Sent from my iPhone using Tapatalk
     
  7. grumper

    grumper Well-Known

    2,370
    346
    83
    Jul 5, 2012
    Austin
    I used to mess with those mini bubble levels but this scope leveling tool made by Arisaka is so much better.
    IMG_0146.jpg

    Most quality scopes have a flat bottom under the turrets. If your mounting base is flat too all you gotta do is put the leveling base on the mount and slide the wedge in until it butts up against the flat turret bottom. Easy peasy.

    Worked great on my Leupolds and Nightforce. Didn't work on my Aimpoints due to the tube not having a flat bottom. So I still keep a set of bubble levels around, but I try to use the Arisaka wedge first.
     
    Vaquero likes this.

Share This Page