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TriggerShims
Winchester Rifle Shims
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Manufacturer of
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Since 2008
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We Manufacture the Widest Selection of Gun Shims to be Found Anywhere on the Planet
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Shively Sales - Manufacturer of
TriggerShims Brand
Gun Shims
in
Michigan Center, Michigan
"Better to be poor and honest than to be dishonest and rich." Proverbs 28:6
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America's Largest Gun Shim Company Since 2008
Winchester Rifles
The Gun That Won The West
Index
Winchester Page Index
~ Winchester Quick Links to Items on This Page ~
Winchester 94 Hammer/Lever/Trigger ShimsWinchester Original 1873 Lever Shims
Winchester 69 / 75 Bolt Shims
Winchester 52 / 43 / Suhl Bolt Shims
TECH TIP: Bolt Shim Instructions ~ A General Guide
Winchester Miroku 1873 Lever Shims
Winchester Miroku 1873 Hammer Shims
Winchester 94 RP Hammer Spring Pak
Winchester Tubular Magazine Spring
Win~HTL
Winchester Lever Action 94 Shims
Winchester Model 94 Lever Action
Front Link, Lever, Trigger and Hammer Shims
Fits Original Models Made BEFORE 1978 - See Notes Below for 1978 and AFTER
Shims for:
- Hammer - .189" X .368"
- Finger Lever - .189" X .368"
(photo right) Great When Adding a Loop Lever - Front Link Shims - .189" X 293"
- Trigger - .126" X .243"
Regular Assortment - 2 each Lever, Hammer, Front Link and Trigger Shims as follows:
- 8 Piece Kit comes with .003" Shims
- 16 Piece Kit comes with .003" and .005" Shims
- 24 Piece Kit comes with .002", .003" and .005"
- 32 Piece Kit comes with .002", .003", .005": and .007"
Each Shim is Available in .002" - .009" - You Can Choose Your Assortment
- Hammer Shim - .189" X .368"
- Lever Shim - .189" X .368"
- Front Link Shim - .189" X 293"
- Trigger Shim - .126" X .243"
Make your selection of quantity and then list style, thickness.
Note: Older Model 94's use the same diameter shim for Finger Lever and Hammer
1978 and up use different shim for the Hammer
Make Sure You Specify 1978 or newer, otherwise Original Model Shims will be sent
Add all shims together for quantity discount
Item# Win~HTL Includes Free U.S. Postage
👉Link To: ADD USPS TRACKING UPGRADE with SHIPPING PROTECTION
Note: Models made 1978 and up use a .245" bushing in the Hammer,
and use a larger Hammer Shim ~ .251" X .419"
If you have a 1978 and up, please add in comments box and we will give you the proper size Hammer Shims
Winchester Model 94 Disassembly at CastBullet.com
Lance, I want to think you for the shims. I put a larger loop on a 1966 Winchester 94 because I have large hands. I did not like the slop in the lever. Your shims made a large improvement for a small investment. Greg in Alabama
Win~75BS
Winchester Model 69A ~ 75S Bolt Shims
Winchester Model 69A and 75S Bolt Shims
Bolt Shims for 1950’s Vintage Winchester 75 Sporter
made between 1938-1958
Also Fits Winchester 69A
made between 1935 and 1963
Shim Size .450" X .565"
How does a 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 tight against the breech. If the bolt is not up tight against the breech it tends to cause misfires and light strikes.
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. Excessive headspace causes the bolt to feel loose.
Also Used for Adjusting after Re-Barreling
If you are getting misfires and light strikes shimming the bolt is a good way to solve it.
TriggerShims Bolt Shims come in the following assortments, Buy Multiple Paks and Save $
- 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" - .007"
- You can Request Your Own Assortment Thicknesses In Box Below
- Includes Free ~ First Class Mail Economy Shipping
TriggerShims Winchester 75S Bolt Shim
Item # Win~75BS 450 X 565
Includes Free U.S. Postage
👉Link To: ADD USPS TRACKING UPGRADE with SHIPPING PROTECTION
👉Link To: INTERNATIONAL TERMS / POSTAGE
Received by bolt shims yesterday, used 0.008 to get my M75 back into proper no go on the NOGO gauge. Excellent! Thanks ~ Kyle in TN
Bolt Shim Instructions
Bolt Shim Instructions
LANCE'S TECH TIP:
Rimfire Bolt Shim Installation
~ A General Guide ~
Rimmed Cartridges use the thickness of the cartridge rim for head-spacing.
.22 Rimfire Cartridges Headspace on the Case Rim.
The Actual Headspace is in the Recessed Face of the Bolt.
You Must Make Sure this Recessed Bolt Face is Equal To or Deeper Than You Rim for Safety
Generally Speaking there is extra room left in production guns between the Bolt and Breech to accommodate a wide variety of ammunition with varying rim thicknesses
You should first measure the depth of your bolt face pocket to insure it meets SAAMI Headspace minimum depth.
Shimming between the two bolt halves ensures the bolt is seating the cartridge up gently against the breech with your chosen brand of ammunition.
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, stacking shims if necessary.
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 Shim.
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.
If the bolt closes slightly tight, it is best to back up one step, remove .001"
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, while maintaining proper headspace. 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, or to crush the rim, did I explain that clearly?
Forcing the Bolt to Close will put premature wear on the bolt shims and will not increase accuracy.
If you have any question, use a headspace gauge to check for proper headspace.
Bolt Shims have in many instances cured light strikes.
Will they help with Accuracy? Don't take my word for it,
Read our 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.
Copy and Paste This Link for Everything You Need To Know About Rimfire Headspace from Kurt the Gunsmith:
https://kurtthegunsmith.com/everything-you-need-to-know-about-headspace/
TriggerShims Bolt Shim Instructions Copyright 2025
V5/2025
Rimfire Rifle Bolt Shim Index
BoltShim-INDEX 9/24
Our Ever Expanding Selection of Rimfire Rifle Bolt Shims
Links to Our List of .22 Rifle Bolt and Barrel Shims
- Anschutz 54 ~ Now In Stock!
- Bergara B-14R Rimfire Bolt Shims
- CZ and BRNO Rimfire Bolt Shims
- CZ 457 Rimfire Bolt Shims
- Kimber 82G Target Rifle Bolt Shims
- Lithgow LA 101 and SA 2020 Rimfire
- Marlin 80 / 983 Rimfire Bolt Shims
- Mossberg 44 U.S. Bolt
- Mossberg 144 LSB Bolt
- Remington 5 Bolt Shims
- Remington 40X Bolt Shims
- Remington 504T Bolt Shims
- Remington 513T / 521T Rimfire Rifle
- Remington 540X Bolt Shims
- Ruger American Rimfire Bolt Shims
- Ruger 77/17 77/22 Bolt Shims
- Savage BMag Bolt Shims
- Savage MKII Bolt Shims - Prototype
- Springfield Armory Model 2020 Rimfire
- Suhl 150 Rimfire Rifle
- Tikka T1x and Sako P72 / M78 Rimfire Rifle / Walther KK300
- Walther KK500 Rimfire Bolt Shims
- Winchester 43 and 52 Bolt Shims
- Winchester 69 and 75 Bolt Shims
- CZ 455/457 Barrel Shims
- CZ 455/457 XL Barrel Shims
- 10/22 Barrel Shims
- 2500X and Trident Barrel Shims
- 3/4" Shank Bull Barrel Shims
~ Barrel Shims ~
NOTE: email me to be put on a list to Request a New Bolt Shim ~ Send Lance an Email ~
Unsolicited Testimonial:
Just a friendly note on the bolt shims I purchased and installed. My 5 shot group went from dime size at 50 yds to everyone touching and not being able to count individual holes.
Thank You for a Great Product ~ Riley in WV
Unsolicited Testimonial:
Lance,
I simply wanted to say thank you for providing Bolt Shims. My first one installed was on my Bergara B-14 22 Trainer. I won the club season matches in 2022. It's more accurate now than my winning season. After seeing an improvement, in an already accurate rifle, I've shimmed my Bergara Shooting Rimfire barreled action, two CZ 457, my 2020 Springfield, and my my 54 Annie. The Anschutz allowed for 5th place in the IR 50/50 factory class last year. I shimmed it yesterday. The common fliers were less frequent and overall consistency was improved. A noticeable improvement was seen in all the rifles.
Thanks again for offering a great product ~ Rob in NC
Win~MIR/L
Original Winchester 1873 Finger Lever Shims
Also Fits: Winchester Miroku 1873 Finger Lever
Winchester and (Miroku) 1873 Finger Lever Shims
(.198" X .499") Available .002" through .010"
Item # Win~MIR/L - Includes Free U.S. Postage
Win~MIR/H
Winchester Miroku 1873 Shims
Winchester Miroku 1873 Hammer Shims
Winchester M73 Miroku Hammer Shim
(.198" X .401") Available .002" through .010"
Item # Win~MIR/H - Includes Free U.S. Postage
Win~32739
Winchester Model 94 Reduced Power Hammer Spring Pak
Hammer Spring Pak Winchester 94 Lever Action Rifles (coil-type)
For the improve trigger function and letoff.
13 and 15 pound Reduced Power Spring allows the shooter a choice trigger improvement.
The factory hammer spring is rated at 18 pounds.
Please Note: Springs not for use in models with flat-type mainspring.
Wolff 32739 $17.95 Free Shipping ~ USA Only
Win~MagSpring
Wolff Tubular Magazine Spring
Wolff tubular magazine springs for rifles and shotguns are for general purpose repairs.
These springs offer approximately 20% extra power over original factory springs to improve feeding.
Springs are 40" long to permit fitting to most any length magazine tube
Wolff 65064
Cartridge:
- 30-30 Winchester
- 32 Winchester Special
- 38-40 WCF
Wolff 65065
Cartridge:
- For 44/40
- 45/70
- 45/90
- Heavy .45 caliber rifles
Price Includes Free USPS Shipping USA Only
"Nemo Me Impune Lacesset"
UPGRADE FROM FREE ECONONY SHIPPING ~to~ SHIM TRACKING w/ SHIPPING PROTECTION #ESU
~ SHIMS ONLY ~
~ $5.00 U.S. Tracking UPGRADE ~
NOW Includes
~ SHIPPING PROTECTION* ~
~ USA ONLY ~
Upgrade from FREE ECONOMY MAIL to
Bubble Pak w/ Tracking
(Shims Only) Orders - Add TRACKING $5.00 - USA ONLY
Shim orders DO NOT include Tracking!
THIS IS FOR SHIMS - ALL OTHER ORDERS Include Tracking
~Click the ADD TO CART button below ANYTIME BEFORE WE SHIP SHIMS~
Continental USA, AK & HI ONLY
* USPS Ground Advantage™ Service
* Replacement for items lost or damaged during shipping
We Cheerfully accept Cash, Money Order, and Credit Cards through our Secure PayPal Check-Out
All Website Orders are Shipped the Next Business Day
I will Ship Shims to USA, Canada and International
Gun Parts Shipped to USA Only
"American Made Gun Shims" - GunShims.com - TriggerShims.com
and
TriggerShims is a Trademark
of
Shively Sales
Michigan Center, Michigan
All Material Copyright of Lance Shively
2008 ~ 2025
BY PURCHASING SHIVELY SALES PRODUCTS
YOU ASSUME ALL RESPONSIBILITY FOR THEIR SAFE INSTALLATION AND USAGE.
YOU RETAIN ANY AND ALL RESPONSIBILITY FOR YOUR OWN ACTIONS. Be Safe!!
If you have any questions or safety concerns, see a qualified Gunsmith.
I manage this site myself, Please Report Any Website Problems to;
Lance at Webmaster@TriggerShims.com
I Reserve the Right to Refuse Service to Anyone
Republic.... I like the sound of the word. It means people can live free, talk free, go or come, buy or sell, be drunk or sober, however they choose. Some words give you a feeling. Republic is one of those words that makes me tight in the throat - the same tightness a man gets when his baby takes his first step or his first baby shaves and makes his first sound as a man. Some words can give you a feeling that makes your heart warm. Republic is one of those words. - John Wayne in the Alamo