cz455_rifleCZ_455_chamber_rShankCrowned muzzleVarmint taper

CZ 455 22LR


These barrels are a true match-grade barrel, we only have one grade for all of our barrels, our best. All of these barrels are made from 1″ diameter 416 alloy rifle-barrel-quality stainless steel. Every barrel is drilled, reamed and rifled in our shop followed by a stress relieving heat treatment operation. They are then hand- lapped for a superior internal finish and diameter uniformity.

Barrel Description

Caliber: .22 LR

Twist: 1-16″

Groove: 6-groove

Length: 21″

Available for fluting: No

This newest run of CZ 455’s 22 LR have the new shim kit design, and new ‘Lilja 2’ chamber. Please see instructions below for installation.


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Product Description

Two profiles available:

.900″ diameter straight cylinder with no taper. Made from 6-groove blanks and chambered with our ‘Lilja 2’ match reamer. The weight is 3 pounds 6 ounces (54 ounces) in .22 LR caliber and 21″ length.

Varmint taper. It is .900″ diameter for 3″ and then a straight taper down to .630″ diameter at 21″. This taper is also listed as RF 122 on our special rimfire contour listing. These barrels are made with a new ‘Lilja 2’ chamber made by PTG. Weight is 2 pounds 8 ounces (40 ounces) in .22 caliber and 21″ length. This profile barrel slips into the stock of our shop test-rifle without any barrel channel modification and fills it up with a much cleaner look than the original sporter profile furnished with the rifle. This is the varmint barrel shown in the image above. With these drop-in barrels we then turn the shank end of the barrel to the proper dimensions and cut a match chamber.


The barrel is then cut to final length and crowned with an 11 degree target-type crown. Each barrel is then polished to a 600 grit exterior finish and then our name and the cartridge designation is engraved on the barrel. And lastly the finished barrel receives a final inspection and is sealed in a 6 mil poly tube and placed on the shelf.

One of our CNC lathes that does the turning work on the chamber end of the barrel and cuts the chamber.
One of our CNC lathes that does the turning work on the chamber end of the barrel and cuts the chamber.

Drop-in barrels do not require any special gunsmithing. Directions for installing the barrel are furnished with each barrel. These instructions can also be found directly below. If you do not feel qualified to install your new drop-in barrel we can do so for a $50 charge.

Installation Instructions

  1. First you will need to measure your headspace. The most accurate way to do this is by using a depth gauge, and measuring from the receiver face, to the bolt face recess while the action is cocked. Let’s say you get a measurement of 1.235” and you want your headspace at .043”. That means you need a shank length of 1.192”.

(1.235 – .043 = 1.192)

  1. Every barrel will have a shank length of 1.200”. So now we know to shim the barrel .008” to obtain proper headspace.

(1.200 – 1.192 = .008)

  1. Now that we know how much we need to shim the barrel, we can use a .005” shim and a .003” shim stacked together to obtain headspace. You can use any combination you’d like, but try to use the least amount possible.


  1. Slide the .005” and .003” shim onto the barrel shank, making sure they are fit up tight against the shoulder of the barrel.


  1. Slide the new barrel, with shims up firmly against the shoulder into the new action, being careful to align the ridge of the cuts for the set screws at the 6:00 position. Tighten the two set screws equally, pulling the barrel into the receiver. Recommended Torque is 35-40 Inch Pounds.

The receiver stock screws are a T-27 Torx Head

Note: We turn the barrel shanks slightly larger than the original CZ dimensions on this diameter. We’ve seen a couple of receivers that had a slight burr where the angled tapped holes break out into the receiver bore. This little burr prevented the barrel from sliding into the receiver with our close fit shank. So if you find the barrel difficult to slide in place initially, check for these burrs.

We offer a .043” Go Gauge made by Pacific Tool and Gauge. Please note that it is not necessary to use a Go Gauge to get correct headspace using this method.

Additional Information

Weight 4 lbs
Dimensions 24 x 1.5 x 1.5 in

.900″ X 21″, Varmint Taper


  1. :

    Hi. I purchased two of these barrels in Australia the first …awesome the second has just come out of the safe and shoots three in one hole .the next two go in another group high and right can’t explain it

  2. :

    I had my 21″ barrel for a good month now, with over 2000 rounds, and it does the same as Gilbert steenhuis Second barrel. I have figure it’s just me. It will shot less than
    a 1/2″ at 50 yards most times. I have order a 45×45 completion Leupold to maybe decrease my group size. Current scope is Bushnell elite 4500 8x32x40.

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