Lilja cz 457 barrel

Feb 7, 2023 · I am starting on a build over time cz457, its in 22wmr, so that will be swapped out to 22lr. Lilja, Lothar, IBI, Acculite, other? I don't know if it would be a huge difference between Lilja and Lothar to justify the price, or a budget build on a Acculite.

Oct 4, 2023 · Shot five targets this morning at 100 yds. Couldn't resist a chance with no wind in Mark's Hollow. Rifle is a CZ-457 with Timney 10 0z trigger, Lilja 20" SS barrel,single load adapter, S-7 bipod and Sightron SIIISS 10-50x60mm. She prefers the X-ACT at 100 yds even though it's a little slower than TENEX. Whatta Hobby! View attachment 427601 View ... Vybrané modely ráže 22 LR, jako např. CZ 457 MTR, disponují MATCH nábojovou komorou na samé hranici tolerance norem CIP. Velmi precizní výroba a nízké tolerance ...Lilja Precision Rifle Barrels, Inc. is a family owned and operated business since 1985. The second generation of the Lilja family is now working here too with Adam working with CNC programming and new product development and Carson graduating in the spring of 2014 with a business degree. Click here for more information on who we are.I reinstalled the barrel with 0.008 shims and the bolt is much more firm in closing, almost as it was on the original CZ barrel. I have not shot it yet. Still my numbers gave me the 0.038 headspace on the original barrel, and with the shims installed on the Lilja I should still be at 0.038 headspace. ... I bought a Lilja 457 barrel 2 years ago ...19. 6. 2021 ... I am looking at buying a new Lilja barrel for a 457 American. I want to get the 21 inch barrel that has the straight .9 inch diameter but ...

This rifle is the perfect platform to build the ultimate small game rig. The barrel is 24.8″ and comes free floated from the factory. I safely tuned the factory trigger to a crisp 2 1/4 lbs using its internal adjustment mechanism. The receiver has an integral 11mm dovetail that allows you to mount your rings directly.Here is an Installation Instruction video on our CZ455/457 barrels. I get a lot of calls about how to set headspace on our CZ barrels that come with the Shim Kit. Hopefully you find this helpful! Let me know if you need anything else added to the video!These barrels are made from 416-type stainless and 4140-type chrome-moly steels, US tooling, pull-button rifled with a uniform twist, stress-relieved in a vacuum furnace and …Shop Lothar Walther CZ455/457 Replacement Rifle Barrel | Up to 13% Off Customer Rated on 2 Reviews for Lothar Walther CZ455/457 Replacement Rifle Barrel + Free Shipping over $49. Toll-Free: +1-800-504-5897 Live Chat Help Center Check Order StatusCZ 457 Prefit Lilja Barrel Rated 5.00 out of 5 based on 14 customer ratings $ 500.00 – $ 625.00 Add to cart Description These barrels are in stock, but please allow at least 2-3 days to ship from ordering. You do not need to add additional fluting “add on” to these orders. As of March 2010 we have an additional letter from the UK refining the definition of a finished barrel. To see this .pdf file – Click Here Additionally we need a written purchase order from the buyer detailing the purchase including a statement that the barrel will be used for ‘sporting purposes’.

CZ 455/457 22LR .900 X 16 3/4″ Threaded 1/2 X 28″. $605.00. 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 ...Precision Rifle Barrels Inc. Social. © 2023 Lilja - Riflebarrels Inc. Smallbore Rifle Specification: .22 Rimfire, CZ -457 action, Dolphin Smallbore modular chassis with Dolphin Ranger bipod and Lilja Match grade barrel with ASE UTRA sound suppressor. Dolphin Gun Company. Specialist Smallbore rifle builds to your requirements. These rifles are within the ELR class as they hold a ½ inch (MoA) group at 100 yards.CZ 457 22LR DOUGLASS 14 TWIST BARREL ACCURACYDan Lilja knows those details. Lilja is a barrel maker from Plains, Montana, a benchrest shooter and past director and president of the National Benchrest Shooters Association. His barrels have won every major benchrest tournament across the country. Hunters, varmint shooters, the US Armed Forces and every major bullet manufacturing …

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Gun barrel blanks Contoured rifle barrel blanks Drop-in gun barrels AR10/AR15 gun barrels CZ 455/457 barrels Enfield No.4 Mk1 M1 Garand rifle barrels M1A rifle barrels Mauser 98 Military rifle barrels Mauser 98 Sport/Hunting rifle barrels Ruger Precision Rifle barrels Savage (small shank) rifle barrels Tikka T1X Zermatt Arms RimX Pre-Fit Description. If you're a fan of the CZ 455 & 457 22 LR you'll be an even bigger fan of the PROOF Research pre-fit carbon fiber barrels. These are cut with a Bentz chamber, and headspace at .044″ +/- .001″ (depending on your action). The 16.1″ barrels weigh 22oz, 18.5″ barrels weigh 25oz, and the 20″ barrels weigh 27oz. Additional ...Jul 28, 2022 · My personal experience with Lilja rimfire is: - CZ 455 with the sporter weight barrel on it - CZ 455 with a 17 HMR barrel on it, and it seems to be near the end of life. But it has consistently outshot the factory barrel (which was a disaster) a 1717D HB Annie, and my Cooper LV 57M. - CZ 457 with a 17 HM2 barrel on it. Pre-thread/chambered barrels We are offering chambering in the cartridges listed at the bottom of this page when combined with threading for one of the action types also listed. The chamber is cut about .005” deeper than the nominal depth for the action. It is also polished and has a slight chamfer at the chamber mouth. ... View Article

Precision Rifle Barrels Inc. Social. © 2023 Lilja - Riflebarrels Inc.Sep 5, 2021 · Rotate barrel with grub screws loose all the way to the right secure barrel and try. I've got a 22 lr lilja barrel for CZ 455/457.. Some ammo it will not eject when fired. Not a carbon ring causing either. Barrel did this with some brands ammo with under 100 shots fired through barrel from new. Yeah I can clean. Accessories for CZ 457 models as well as older CZ rimfire models CZ 455 and CZ 512. We offer wide range of parts and accessories for your CZ 457: springs, stocks, compensators, magazines, scope bases & rails, scope rings and much more. Unique accessories ️ In stock ️ Quality from Czech republic ️.Bartlein CZ455 drop-in barrels ready to go! Many available lengths up to 22". Come standard with an 11deg target crown or threaded in 1/2x28 or 5/8x24. Fluting and coating available as always! 10"-22" (Call for other sizes) .22RF Bentz Chamber. Bartlein Barrel SS.I have a CZ 457 with a lilja barrel just installed. I was having a big problem with extraction issues. I ended up shimming to .390 and was able to get tenex to extract 100 percent of the time. I shot about 150 to 200 rounds with no issue. I then packed up and was about to head home then my buddy showed up and asked shoot a few rounds.Oct 8, 2020 · Lothar Walther 22lr Barrel for CZ 455 / CZ 457. Stainless steel 20 1/2 inch long. Threaded muzzle 1/2-28. The diameter is .865 straight. This barrel does not come with a thread protector from the factory. Match Chamber with about 500 rounds fired. Seems to shoot best with SK Rifle Match and Lapua Center X. SK Standard Plus is a good shooter as ... Rifle Barrels for sale. Explore a wide range of Rifle Barrels on Brownells Australia. shipped from our Mitchell, ACT shop to across Australia. ... CZ USA 455 BARREL WITH 5 ROUND MAGAZINE 22 LONG RIFLE 20.5" 1-16 BLACK. Brownells Part No : 100024870. Status : Price : Add to Wish List.You say custom doesnt work in a sentence with CZ 455 then go on to define the EXACT reason why we have CUSTOM barrels made for your CZ 455/457's for extreme accuracy. No, Lilja barrels ARE NOT custom barrels, they are semi-custom/drop ins made to a tolerance that work on the wide range of CZ 455 tolerances and from my notes and working with ...IBI CZ Rimfire Precision Barrels. ( CZ455/457 Drop-In) Product Description. IBI barrels are made from the best rifle grade steel available. They are honed, hand lapped and double stress relieved during the barrel making process. IBI takes great care during the buttoning process to make sure their end product exceeds the standards of the world's ...

I reinstalled the barrel with 0.008 shims and the bolt is much more firm in closing, almost as it was on the original CZ barrel. I have not shot it yet. Still my numbers gave me the 0.038 headspace on the original barrel, and with the shims installed on the Lilja I should still be at 0.038 headspace. ... I bought a Lilja 457 barrel 2 years ago ...

Here is an Installation Instruction video on our CZ455/457 barrels. I get a lot of calls about how to set headspace on our CZ barrels that come with the Shim Kit. Hopefully you find this helpful! Let me know if you need anything else added to the video!Jul 28, 2022 · My personal experience with Lilja rimfire is: - CZ 455 with the sporter weight barrel on it - CZ 455 with a 17 HMR barrel on it, and it seems to be near the end of life. But it has consistently outshot the factory barrel (which was a disaster) a 1717D HB Annie, and my Cooper LV 57M. - CZ 457 with a 17 HM2 barrel on it. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...CZ 457 Prefit Lilja Barrel Rated 5.00 out of 5 based on 14 customer ratings $ 500.00 – $ 625.00 Add to cart Description These barrels are in stock, but please allow at least 2-3 days to ship from ordering. You do not need to add additional fluting “add on” to these orders.CZ 455/457 22 WMR. $485.00. 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.Save. 1 - 7 of 7 Posts. S. Salukiman · #2 · Apr 2, 2020. CZ factory barrel replacement. You might be surprised how nice a Stainless Steel CZ barrel ( pt# 00220) would look on your 457 American. I swapped out my 457 Scout barrel with Stainless in 22WMR also the cheap wood stock with an Oryx chassis stock. Shoots great and looks …Shop Lothar Walther CZ455/457 Replacement Rifle Barrel | Up to 13% Off Customer Rated on 2 Reviews for Lothar Walther CZ455/457 Replacement Rifle Barrel + Free Shipping over $49. ... The CZ 452 uses a threaded barrel fitment. The 455/457 barrels are slip fit installations. by DJs457CZ, Verified Owner, October 10, 2022 ...3rdcamelrider · #8 · Jan 1, 2023. I have a 457 VPT MTR in Manners stock with an EC2 tuner that I've used in competition and I'm happy with it's accuracy. I also put a Lilja .900 21 inch barrel with a different 457 receiver in a MDT XRS chassis recently which I haven't used in competition yet. I have been able to compare accuracy of the two to ...The barrel has been an amazing experience, a great barrel has no substitute. The chamber can be straight and the threads perfect but none of that will over come a tight spot or reverse taper in the barrel. Premium barrels actually save you money and blood pressure points. I see more top PRS shooting Bartlein, I hardly ever see …Great deals on CZ Barrel Rifle Parts. Trick out or upgrade your firearm with the largest gun parts selection at eBay.com. Fast & Free shipping on many items! ... CZ 457 Barrel Screw, Stainless Steel Replacement Set. $9.99. Free shipping. Boyds Rimfire Hunter Sky Stock CZ 452 22WMR Bull Barrel Rifle. $211.59. $29.43 shipping. Acculite CZ 455/457 ...

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The CZ 457 may be the most modular precision rimfire on the market. You can swap barrels and magazines easily. The interchangeable barrel feature is by far the best feature of the CZ 457. Want to shoot .22 WMR for varmint hunts then transition to a .22 LR for precision shooting? No problem — five minutes and four screws are all you need.Pre-ordered another Lilja .900"x21" straight cylinder barrel in Dec. 2022 and received it in Feb. 2023. I installed this barrel in a CZ 457 VPT for a good friend and turned him loose with it. We have been shooting 3 Lilja barrels from last year and have been very happy with them.So not every day can be our best day obviously haha. Even with the conditions the barrels performed well but you can see that the lilja has the accuracy edge...CZ 455/457 17HM2. $505.00. 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.Smallbore Rifle Specification: .22 Rimfire, CZ -457 action, Dolphin Smallbore modular chassis with Dolphin Ranger bipod and Lilja Match grade barrel with ASE UTRA sound suppressor. Dolphin Gun Company. Specialist Smallbore rifle builds to your requirements. These rifles are within the ELR class as they hold a ½ inch (MoA) group at 100 yards.Oct 10, 2019 · Frank already sent me one of their drop-in/Semi custom CZ 455/457 barrels back in the beginning of this year which I tested in a few different CZ455 review threads posted. This barrel uses a Bentz chamber. In my testing, that barrel shot great once you found the right ammo. It really loved RWS R50. IBI CZ Rimfire Precision Barrels. ( CZ455/457 Drop-In) Product Description. IBI barrels are made from the best rifle grade steel available. They are honed, hand lapped and double stress relieved during the barrel making process. IBI takes great care during the buttoning process to make sure their end product exceeds the standards of the world's ...Precision Rifle Barrels Inc. Social. © 2023 Lilja - Riflebarrels Inc. Mar 2, 2023 · Pre-ordered another Lilja .900"x21" straight cylinder barrel in Dec. 2022 and received it in Feb. 2023. I installed this barrel in a CZ 457 VPT for a good friend and turned him loose with it. We have been shooting 3 Lilja barrels from last year and have been very happy with them. This chamber is designed around the Ely EPS ammo. CZ 455’s Our newest CZ 455’s 22 LR’s are chambered with my new ‘Lilja 2’ reamer, which is a modified version of the previous Lilja reamer. It still engraves on the bullet, but allows you to remove unfired ammo from the chamber. This chamber was designed around the Ely EPS ammo.Oct 5, 2016 · When Lilja first hit the BR scene, they did very well. But it seems their quality and accuracy have fallen off over the years to the point where a Lilja barrel is now a rare bird in serious BR. However Shilen as everyone knows still can produce very accurate competitive barrels in high end BR. I have had success with Ratchets and Octagons. ….

Full open class build on a CZ457, we used a Lilja Barrel 1:16 twist, MDT XRS chassis system, timney trigger, DIP aluminum magwell, Element Titan 3-18x50 wit...Accessories for CZ 457 models as well as older CZ rimfire models CZ 455 and CZ 512. We offer wide range of parts and accessories for your CZ 457: springs, stocks, compensators, magazines, scope bases & rails, scope rings and much more. Unique accessories ️ In stock ️ Quality from Czech republic ️. I am starting on a build over time cz457, its in 22wmr, so that will be swapped out to 22lr. Lilja, Lothar, IBI, Acculite, other?1. 9. 2023 ... My stock barrel was making me crazy, so I installed the Lilja using a brass case for headspacing. The shooting was done at 100 yards off of a ...I reinstalled the barrel with 0.008 shims and the bolt is much more firm in closing, almost as it was on the original CZ barrel. I have not shot it yet. Still my numbers gave me the 0.038 headspace on the original barrel, and with the shims installed on the Lilja I should still be at 0.038 headspace. ... I bought a Lilja 457 barrel 2 years ago ...Nov 28, 2019 · I was looking at the Area 419 "457" barrels myself.. I read in a thread somewhere here (someone was testing one) Area 419 barrels use a certain style chamber reamer that likes elay ammo.. I forget the name of the chamber reamer though.. I do know if you buy from Bartlein directly, they are a little cheaper than from Area 419.. $425ish compared ... Shot five targets this morning at 100 yds. Couldn't resist a chance with no wind in Mark's Hollow. Rifle is a CZ-457 with Timney 10 0z trigger, Lilja 20" SS barrel,single load adapter, S-7 bipod and Sightron SIIISS 10-50x60mm. She prefers the X-ACT at 100 yds even though it's a little slower than TENEX. Whatta Hobby! View attachment 427601 …From our 10/22 barrels right through to replacement barrels for Bergara B-14Rand other high end full sized .22s, we have you covered with barrels based in Olympic level technology. All our rimfire barrels are cut from the best 416R stainless steel. They are all honed to .0001″ from end to end, hand lapped and double stress relieved.23. 6. 2020 ... If anyone has any direct knowledge of the current drop in 21" Varmint Lilja barrel I would appreciate your experiences with it. Lilja cz 457 barrel, Dan Lilja has been an active benchrest shooter since the mid-1970s and began LilJa Precision Rifle Barrels, Inc.. Lilja Barrels have numerous competitions, including events in NBRSA, IBS Nationals, Super Shoot, Cactus, Crawfish and Williamsport, FCSA, BR-50, CBA, ARA, RBA, and even Olympic Gold medals. Lilja Barrels are so accurate they are ..., Javascript is required. Please enable javascript before you are allowed to see this page. , Finished Drop-in Barrels 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. , About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators ..., 26. 1. 2021 ... CZ 457 action .22 rimfire with 21 inch Lilja barrel and a beautiful bronze Masterpiece Arms chassis. Tack driving accuracy with premium ammo., This rifle is the perfect platform to build the ultimate small game rig. The barrel is 24.8″ and comes free floated from the factory. I safely tuned the factory trigger to a crisp 2 1/4 lbs using its internal adjustment mechanism. The receiver has an integral 11mm dovetail that allows you to mount your rings directly. , Jun 26, 2019 · You say custom doesnt work in a sentence with CZ 455 then go on to define the EXACT reason why we have CUSTOM barrels made for your CZ 455/457's for extreme accuracy. No, Lilja barrels ARE NOT custom barrels, they are semi-custom/drop ins made to a tolerance that work on the wide range of CZ 455 tolerances and from my notes and working with ... , CZ 455/457 22LR .900 X 16 3/4″ Threaded 1/2 X 28″. $605.00. 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 ..., Lilja Rifle Barrel Blank 30 Cal /300 Win Mag - SEAL Stock. $375.00 + $15.14 shipping. Marlin Model NO. 20 22-S-L-LR- Rifle Barrel. $250.00 ... Lilja Rifle Barrel Blank .457. Lilja Rifle Barrel Blank .457. Item Information. Condition: New other (see details) New other (see details) Quantity: 3 available. Price:, Dan Lilja has been an active benchrest shooter since the mid-1970s and began LilJa Precision Rifle Barrels, Inc.. Lilja Barrels have numerous competitions, including events in NBRSA, IBS Nationals, Super Shoot, Cactus, Crawfish and Williamsport, FCSA, BR-50, CBA, ARA, RBA, and even Olympic Gold medals. Lilja Barrels are so accurate they are ..., Lightweight. Up to 64% lighter than traditional steel barrels of similar contour. Extreme Temperature Resistance. Improved heat dissipation for cooler and longer lasting barrels. Unprecedented Durability. Wrapped with high-strength, aerospace-grade carbon fiber impregnated with a proprietary matrix resin. , Lilja Precision Rifle barrels has been named the exclusive supplier to the Navy SEALS for the Mk 13 .30 caliber and Mk 15 .50 caliber barrels. Quoting from the contract: “The Mk13/Mk15 Sniper Rifle barrels shall be used in support of precision weapons requirements for the Department of Defense. The goal is to provide the most precise, durable ..., In this PounderLabs video we focus on identifying and fixing a chamber flaw in a new Lothar Walther drop-in barrel for the CZ 457. We discuss recent history..., CZ 457 VPT with factory barrel Vortex Razor AMG Seekins low rings Area 419 scope rail Area 419 bolt knob DIP magwell, mag release, and block. Custom cut full length grade 10.9 action screws. Reshaped and polished striker Polished bolt Manners Lightweight cheek piece Pillar bedded with MarineTex..., Dan Lilja knows those details. Lilja is a barrel maker from Plains, Montana, a benchrest shooter and past director and president of the National Benchrest Shooters Association. His barrels have won every major benchrest tournament across the country. Hunters, varmint shooters, the US Armed Forces and every major bullet manufacturing company ..., Save. dnttech · #6 · Oct 5, 2016. Really do not see the appeal of a drop in barrel for the 455. You will, in all probability, require the barrel's shoulder to be set back in order to obtain an optimum headspace. That expense, plus the cost of the barrel has you somewhere in the price range of a custom barrel., Originally started as a CZ 457 MTR. Only thing left from original configuration is the action and bolt. New Configuration: .900 21" Lilja Barrel, PDC Custom G5C Rimfire Chassis, Timney Trigger (8oz), Area419 30MOA Base, View attachment 1427432., Yes spend the money on a good barrel as a cheap barrel will just give you frustration and waste more money in ammo trying to find what it will shoot. View Quote Kinda hard finding barrels right now, the Lothar-Walther are in stock, not sure how they compare to the Lilja, If you choose the set screw installation keystone will install your barrel and ship it. You can choose between Lilja or the Lilja 2 chamber. Due to CZ 455/457 actions varying slightly, everyone will need to send your action to Keystone Accuracy for a true custom fit barrel. These are not semi-custom/drop in barrels., #22lr #precisionrifle #rimfire #shooting, Today we feature the CZ 457 of Joshua Thomas, the talented host of the Pursuit of Accuracy YouTube Channel. Josh loves his CZ 457, which has been upgraded with a Lilja barrel and Timney …, So knowing the 457 Lilja barrel comes with a shim set, ... I have a Lilja barrel on a CZ 457, I set the headspace at .043. It shoots Eley, Lapua and RWS, very good. I practice a lot with CCI SV, Agula and Norma Tac22, no …, Oct 13, 2021 · The CZ 457 Training rifle is a bolt action rifle of fine engineering. The heart of the gun fires a dependable 22LR. The 24.8 inch barrel allows for swift maneuverability. This rifle also features the Beech Wood Stock along with a 5 round magazine. Get this CZ 457 Training from GrabAGun for the... , Sorry if this have been ask before, but I want to buy the best barrel for my cz 457 that i can afford. My current cz is not inaccurate by any means but it leaves me wanting more. My current budget is around $600. I have been looking at area 419, proof, lijia, and the current group buy on sniperhide., Smallbore Rifle Specification: .22 Rimfire, CZ -457 action, Dolphin Smallbore modular chassis with Dolphin Ranger bipod and Lilja Match grade barrel with ASE UTRA sound suppressor. Dolphin Gun Company. Specialist Smallbore rifle builds to your requirements. These rifles are within the ELR class as they hold a ½ inch (MoA) group at 100 yards., I've got a CZ 457 ProVarmint and I would not sell this barrel for anything it's hilarious. ... I also have a Lothar Walther on my cz 457. Excellent shooter (my stock barrel was actually pretty good too, looking back on it). ... Krg Bravo, Lilja barrel. Klay23; Jul 29, 2022; Buy - Sell - Trade ; Replies 2 Views 573. Jul 29, 2022. Klay23. SOLD F ..., The group buy I ran was "CUSTOM FIT" barrels to EACH PERSONS CZ 455/457 action. No one barrel was the same as the last. Each barrels tenon was custom cut to a diameter just shy of press fit for a wobble free fit in the receiver. Each persons barrel tenon length was custom cut to headspace to 0.041" in THEIR action., GladesGuy · #19 · Jan 14, 2020. Well, they got back to me right away to confirm that the 455 American barrel was a straight taper to .551" which I confirmed it was. Here is their response and FALPhil was spot on: "We are definitely willing to produce them. For custom .22 CZ barrels we charge $399., CZ 455/457; Anschutz; Ruger Precision Rimfire; In-Stock Barrels. Stock; Extra; Pre-Fit Barrels. Defiance Ruckus; Custom Barrels. Rimfire Barrels; Centerfire Barrels.50 …, The .900 should be a drop in to the barrel channel or require just a bit of wood removal to free float. Some folks like the bed the first inch or two of the barrel near the action. My custom 455 has a 24" 0.850" barrel on it. The Lilja drop-ins are 21" and 0.900"., Javascript is required. Please enable javascript before you are allowed to see this page., The group buy I ran was "CUSTOM FIT" barrels to EACH PERSONS CZ 455/457 action. No one barrel was the same as the last. Each barrels tenon was custom cut to a diameter just shy of press fit for a wobble free fit in the receiver. Each persons barrel tenon length was custom cut to headspace to 0.041" in THEIR action., I have a CZ 457 with a lilja barrel just installed. I was having a big problem with extraction issues. I ended up shimming to .390 and was able to get tenex to extract 100 percent of the time. I shot about 150 to 200 rounds with no issue. I then packed up and was about to head home then my buddy showed up and asked shoot a few rounds.