TriggerShims
Anschutz
Rimfire Rifle Shims
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American Made Gun Shims for
Anschutz 54 Action
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Anschutz Rimfire Rifles
~ Quick Links to Items on This Page ~
Anschutz 54 Action Bolt ShimsAnschutz 54 Action Tech Tip - Targets with Bolt Shims
TECH TIP: Bolt Shim Instructions ~ A General Guide
Item # 54 Action/BS
Bolt Shims for Anschutz 54 Action
Rimfire Rifle Now In Stock
Anschutz 54 Action Rimfire Rifle Bolt Shims
54 Action Bolt Shims .532" X .640" Now In Stock
Bolt Shims
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.
Factory fitting of the barrel into the receiver can also leave excess clearance between the bolt and breech. Shims can also used for adjusting after Re-Barreling If you are getting misfires and light strikes shimming the bolt may be a good way to solve it.
These are the Original TriggerShims Brand anschutz 54 Action Rifle Bolt Shims
A 4 Pak or 5 Pak should do most any gun, Order multiple Paks for Multiple Guns and Save $$
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 - $7.50 *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 was asked by Gunsmith Jason Lowe ~ Lowey Products Australia to make shims for the Anschutz 54 bolt, and We Appreciate His Measurements, Photo's and Field Testing!
Lowey Writes;
Hi Lance,
You may get questions from Anschutz owners about the spring loaded section on their bolt that pushes on the shim....
I ran this through very strongly and multiple rifles, the shim will change shape and have the indent for the spring loaded section but it never failed and is working perfectly in our club rifle (this rifle gets abused more than it gets looked after so it is the perfect testing ground)
TriggerShims Bolt Shims can be used
as a measuring device and an adjustment tool if needed, shims are installed until the Bolt just touches the barrel breech face, and then reduce by .001"
Also used to Adjust to Varying Rim Thicknesses for your Favority Match Target Ammo
Sold in paks of 4 or 5 to check and adjust bolt to barrel fit.
A-54 Action Bolt Shims .532" X .640"
Item # SS-A54 Action/BS Bolt Shim Pak ~ Free Economy Shipping
Click Box to Choose Different Quantities
👉Link To: ADD USPS TRACKING UPGRADE with SHIPPING PROTECTION
👉Link To: INTERNATIONAL TERMS / POSTAGE $1
See Target Results Below
"Let your gun, therefore, be the constant companion of your walks, the knife accompanying"
Thomas Jefferson ~ c. 1785
BOX#A1712~Targets
TECH TIP: Anschutz Bolt Shim Targets ~ Clay from Vancouver Island
Clay shares his Targets and Details with TriggerShims;
I've shot my Anschutz 1712 in smallbore silhouette for many years. It has probably over 300,000 rounds through it and for a while now I've been feeling like it hasn't been shooting quite as well as it used to. I normally feed it better than Federal bulk stuff, but I figured it was probably still a decent test to see what happened with it when going through the various shim thicknesses. The Federal stuff was on sale, and I wanted to test with rather large sample sizes to reduce error as much as possible. I decided to test 50-shot groups at 77 metres, which is turkey distance in that game, the third-furthest but hardest to hit target. Here is how it did before installing a shim and the results with the shims. I've included pictures of the groups..... (Continued Below)
Click on Any Photo to Enlarge
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~ No Shim ~
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~ .0015" Shim ~
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~ .002" Shim ~
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~ .003" Shim ~
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~ .0035" Shim ~
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~ .004" Shim ~
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~ .005" Shim ~
Clay Continues;
As this Federal bulk ammo shot before putting any shims in I would say it is not something I would consider using to shoot silhouette matches. The dispersion was just too great to have any confidence in it. It is pretty cheap ammo, so this is expected. I'll usually shoot Eley or Lapua/SK's lower end stuff for matches because it is much more reliable, shooting groups that are much better on average. I have to say, I was pleasantly surprised to see an 18.5% improvement here with the Federal and the 0.004" shim. The first couple of shims didn't seem to be enough for the amount of excess headspace that the rifle has after all the use it has seen. They showed very minor improvement, but not much to write home about. The third one looked a little better, but the fourth really smartened things up quite a bit. With the thickest one it actually started going off again, and it was showing some noticeable resistance when closing the bolt. I was surprised the 0.003" shim's group wasn't the best of the bunch, given it had the best SD. Oh well. Not the most consistent ammo anyway, hehe. I stepped backward to the 0.004" shim again and that'll be staying in the gun now. I'm curious to see how it will affect the Eley and Lapua/SK stuff now.
Thanks for the shims! Seems to have smartened the rifle back up.
Isaiah 5:20 Woe unto them that call evil good, and good evil; that put darkness for light, and light for darkness; that put bitter for sweet, and sweet for bitter!
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 Rimfires Headspace on the Case Rim, and the actual head space is in the recessed face of the bolt.
You should first measure the depth of your bolt face pocket to insure it meets SAAMI minimum depth.
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, 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, did I explain that clearly?
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 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
Click Here for ~ Everything You Need To Know About Headspace from Kurt the Gunsmith
V3/2024
Rimfire Rifle Bolt Shim Index
BoltShim-INDEX
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 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 KK500 Rimfire Bolt Shims
- Winchester 43 and 52 Bolt Shims
- Winchester 69 and 75 Bolt Shims
- CZ 455/457 Barrel Shims
- 10/22 Barrel Shims
- 2500X and Trident 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
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