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  • ~Shim Only orders under $75 do not include Free Tracking ~
    ~ Shim Orders OVER $75 Include Free Tracking ~


    Bergara Rimfire Rifle Shims

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    Must Begin by Subduing the Freeness of Speech
    ~ Benjamin Franklin ~

    Manufacturer of
    Trigger Shims Brand
    American Made Gun Shims
    - Home of -

    Gun Shims
    Gun Smith Supplies
    Since 2008

    We Manufacture the Widest Selection of Gun Shims to be Found Anywhere on the Planet

    100% American Family Owned

    Shively Sales - Manufacturer of
    TriggerShims Brand
    Gun Shims
    Michigan Center, Michigan

    "Better to be poor and honest than to be dishonest and rich." Proverbs 28:6

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    American Made Gun Shims

    Bergara B-14 R Rimfire Rifles

    Bolt Shims

    New at
    Bergara B14-R Bolt Shims

    Bergara B-14R Rimfire

    ~NEW~ Bergara B 14R Rimfire Bolt Shims

    The Bergara B14-R's two-piece bolt features a spacer/shim that sets the rifle's headspace. TriggerShims offers a spacer kit that will allow headspace adjustment in 0.001 increments.

    Bergara B-14 R Bolt Shims

    .001" shims are too thin/delicate to be practical. In my opinion, proper clearance is .001" and if a .002" shim is too tight, no shim is needed.

    Bergara B-14 R Bolt Shim

    These are the Original TriggerShims Brand B-14 R Bolt Shims
    A 4 Pak should do most any gun, Order multiple Paks for Multiple Guns and Save $$

    How does a Rimfire Bolt Shim work? The actual head space is in the recessed face of the bolt. Shimming between the two bolt halves ensures the bolt is up snug against the breech. If the bolt has excessive clearance at the breech it can to cause misfires and light strikes, or simply inconsistent accuracy. When a Production Rifle is assembled, a bit of extra room or excess tolerance can be left, and this slight variable can affect accuracy. When the bolt action rifle’s bolt locking surfaces become worn increases in the headspace can cause light firing pin strikes, poor ignition (misfires), looseness of the bolt, and loss of accuracy.
    Proper Adjustment of the Bolt / Breech with Our Shims may Increase Accuracy

    TriggerShims Bolt Shims come in the following assortments, Buy Multiple Paks and Save $

    NEW 5 Piece Kits ~ Include .0015" Shims for Finer Adjustment

    • 4 Pak Assortment - $11 includes 1 each .002", .003", .004" and .005"
    • 5 Pak Assortment - $14 includes 1 each .0015", .002", .003", .004" and .005"
    • Use Drop-Down V and Buy 2X Double or 3X Triple Pak and Save $
    • 2 Shim Pak - $7  *Specify your size in Box Below .0015" or .002" - .010"
    • You can Request Your Own Assortment Thicknesses In Box Below
    • Includes Free ~ First Class Mail Economy Shipping

    Bergara Shim ~ .499" X .649"

    Item # SS-B-14R/BS Bolt Shim Pak

    TECH TIP: Bolt Shim Instructions ~ A General Guide

    - price includes Free Economy Shipping - USA and International

    Bergara B-14 R Bolt Shim Pak
    Choose Assortment Shim Pak
    Enter Choice / Request Below

    Thanks to TriggerShims Field Tester Tony in KY for asking for these shims

    Hi Lance! Received the shims last week and installed the Bergara 0.0015" into my B14R. Only about 100 rounds into so far but has reduced my 50 yd groups by almost 50% with CCI SV. Thanks so much! Michael in TX

    NRA Review: Bergara B-14R

    Bolt Shim Instructions
    Bolt Shim Instructions
    TriggerShims Snek

    Rimfire Bolt Shim Installation
    ~ A General Guide ~

    Rimmed Cartridges use the thickness of the cartridge rim for head-spacing .22 Rimfires Headspace on the Case Rim, and the actual head space is in the recessed face of the bolt.
    Shimming between the two bolt halves ensures the bolt is up gently tight against the breech.
    You can use our color coded numbered shims like a gauge to find the when the bolt face touches the barrel breech face, and then calculate where you want to be with your bolt headspace depth and rim thickness measurements.
    I cannot tell you which shim best works with your rifle, you decide that yourself by fitting and feel and by shooting.
    Installing Bolt Shims requires fitting by hand, and checking with the Bolt installed in the Rifle, and Locked Down - you do not measure with the Bolt out of the Rifle.
    To establish the Bolt/Breech fit, shims are installed and fitted on an empty chamber.
    If possible it may give you a better feel if you leave the extractors off some rifles while fitting shims.
    Start with a 4 or 5 Pak of shims, install the .0015" or .002" thinnest shim and see how your bolt closes, if it seems to close as normal, then continue to install each thicker shim until the bolt starts to close harder than normal. At the point where your bolt begins to close hard, that was the amount of slack that was in your bolt, measured by whatever shim or shims combined were needed to bring the bolt up tight to the breech. Now it is best to remove that shim, and step back one number, example would be if a .005" Red shim causes the bolt handle to close harder than normal, then take it out and install a .004" Purple.
    If you have to force or put undue stress on your bolt to close it, you should reduce the number of shims. You will generally only use 1 of the 4 or 5 shims in the package, but you can stack shims together if needed. When you have the correct shim installed, your bolt should close normally or just (ever-so) slightly tighter than normal. Put a very small drop of oil on the shim. Now you can go to the range and with the barrel pointed in a safe direction, once again check fit with your favorite ammo.
    Due to variations in rim thickness, you may have to reduce the thickness of shims, remember you have already removed all the excess headspace from the bolt/breech, so now the only thing to do is remove thickness (shims) if / as needed to get to your sweet spot or required headspace for the rim thickness of your favorite cartridge.
    For Longest Shim Life use a drop of oil or a (very small amount of) grease on your shim.
    If you have to force or put undue stress on your bolt to close it, you should reduce the number of shims. A minimum of clearance should be maintained, do not put undue stress on the bolt by shimming too tightly as it is unnecessary!
    At no time do you want to force the bolt to close, did I explain that clearly?
    Bolt Shims have in many instances cured light strikes. Will they help with Accuracy? Don't take my word for it, Read our the Customer Reviews or ask our Customers
    Simply Chambering More Consistently Yields More Consistent Results.
    Your Satisfaction is Guaranteed, if you feel you receive no benefit you may send your shims back for a Full Refund.

    TriggerShims Bolt Shim Instructions Copyright June/2023

    TriggerShims Snek

    Rimfire Rifle Bolt Shim Index


    Expanded Selection of Rimfire Rifle Bolt Shims for 2023

    Links to Our Growing List of .22 Rifle Bolt Shims

    1. Anschutz 54 ~ Now In Stock!
    2. Bergara B-14R Rimfire Bolt Shims
    3. CZ and BRNO Rimfire Bolt Shims
    4. CZ 457 Rimfire Bolt Shims
    5. Kimber 82G Target Rifle Bolt Shims
    6. Lithgow LA 101 and SA 2020 Rimfire
    7. Marlin 80 / 983 Rimfire Bolt Shims
    8. Mossberg 44 U.S. Bolt
    9. Mossberg 144 LSB Bolt
    10. Remington 40X Bolt Shims
    11. Remington 504T Bolt Shims
    12. Remington 513T / 521T Rimfire Rifle
    13. Remington 540X Bolt Shims
    14. Ruger American Rimfire Bolt Shims
    15. Ruger 77/17 77/22 Bolt Shims
    16. Savage BMag Bolt Shims
    17. Savage MKII Bolt Shims - Prototype
    18. Springfield Armory Model 2020 Rimfire
    19. Suhl 150 Rimfire Rifle
    20. Tikka T1x and Sako P72 / M78 Rimfire Rifle
    21. Walther KK500 Rimfire Bolt Shims
    22. Winchester 43 and 52 Bolt Shims
    23. Winchester 69 and 75 Bolt Shims
    24. New for 2023
      ~ Barrel Shims ~

    25. CZ 455/457 Barrel Shims
    26. 10/22 Barrel Shims
    27. 2500X and Trident Barrel Shims
    28. NOTE: email me to be put on a list to be notified when new Bolt Shims are ready ~ Send Lance an Email ~

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    Shively Sales
    Michigan Center, Michigan

    Copyright 2008 ~ 2022

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