No carbon ring. At least doesn’t show up.

Barrel looks new, how many rounds down the pipe?

here is a carbon ring after 75 rounds

How far back from the start of the rifling? I didn’t see anything from the rifling all the way back.

The folks I’ve consulted mentioned using Boretech C4 and brushes. Then Boretech Chameleon gel for bad carbon rings. Will see what happened. I’ll likely shoot the stock barrel for a while before changing to a Lilja.

Barrel looks new, how many rounds down the pipe?

Around 300. Cleaned twice. First after 150 and the mixed ammo brands. Then after the last testing of Eley. Cleaned with Boretech Rimfire Blend.

How far back from the start of the rifling? I didn’t see anything from the rifling all the way back.

The folks I’ve consulted mentioned using Boretech C4 and brushes. Then Boretech Chameleon gel for bad carbon rings. Will see what happened. I’ll likely shoot the stock barrel for a while before changing to a Lilja.

The freebore area is where I got the carbon ring. Boretech c4 is good stuff, let the patch soak in the barrel.

The freebore area is where I got the carbon ring. Boretech c4 is good stuff, let the patch soak in the barrel.

Yeah. I have their whole line of solvents. Eliminator, C4, Copper for centerfire and Rimfire Blend for the CZ. Was using Wipe Out on the previous .308. Will still use for centerfire, but liking the Boretech stuff so far.

Yeah. I have their whole line of solvents. Eliminator, C4, Copper for centerfire and Rimfire Blend for the CZ. Was using Wipe Out on the previous .308. Will still use for centerfire, but liking the Boretech stuff so far.

I tried the rimfire blend and it didn’t seem to do anything for me. I just stick with the c4 and eliminator. Switch to kg12 for copper and it takes all the copper out with one wet patch.

Shot all Eley Match today, but two different lots. Cleaned the barrel decently well after the last range day.

Shot 10 foulers before shooting groups to start (clean barrel) and between lots.



Lot #1 (first batch/shipment of Eley Match) plus left over from a previous range day.



Lot #2 (second batch of Eley Match)

Have another lot/batch to try. I was thinking about shooting some Eley Target, but decided to pass.

It was breezy at times and switching directions, but not bad.

Lot #1 had better groups. But also a few malfunctions or misfires. I think 3-4 in one box. Round would chamber, click. Bolt wouldn’t get bite on the case rim. Once I got the round out, had good strike on the case rim. I am guessing either dirty bolt/extractor or something else with the bolt. Second box of Eley and being more mindful of how I closed the bolt with more forward pressure and that stopped. I read that even the standard CZ chamber is tight and may need some time to wear in. But didn’t notice anything on the first 200 rounds, which included Eley Match.

Notes:
- Will have to try taller rings, which will allow me to move the scope slightly more forward. I’m using the rings for this scope from when I had it on a Rem 700. It work “ok”, but the mag dial clearance is super close if I mounted the scope more forward. The LOP adjustment on the stock is all the way out. I thought it worked ok when I set the scope at home and first couple range sessions, but noticed it wasn’t “natural” when shooting more groups.

- Need to add anti-cant/bubble level. The scope base has a bubble level, but I can’t really see it while my face is on the gun. I was lining up the reticle with the lines on the pasters. Want to ensure consistency.

- I shot a bunch of groups between breaks. More than before, especially when compared to shooting centerfire. In the later groups, I noticed some vertical stringing. I took more time to be consistent before breaking shots, including cheek weld.

Overall enjoying the .22 lr rifle. Will likely order a Lilja barrel with threaded muzzle for a tuner. But will see.

Oh that was you this weekend? I saw you shooting. I was shooting off hand with my Mako a few stalls down from you.

Oh that was you this weekend? I saw you shooting. I was shooting off hand with my Mako a few stalls down from you.

I was there Sunday around 12-2ish (I think).

I was there Sunday around 12-2ish (I think).

U gotta try Bushido's hurt feelings steel.

U gotta try Bushido's hurt feelings steel.

I'm down.  Feelings are irrelevant, at least when it comes to shooting. 

Bring your RPR.  Challenge, bruh.

I'm down.  Feelings are irrelevant, at least when it comes to shooting. 

Bring your RPR.  Challenge, bruh.

lul, range too far

I'm down.  Feelings are irrelevant, at least when it comes to shooting. 

Bring your RPR.  Challenge, bruh.

Sounds like a plan. Can zero Mrs. CMO's purple beast at the same time.

Those with the 457 did you shape the firing pin yet?

Those with the 457 did you shape the firing pin yet?

Not me.  I never felt the need to.  Stock mtr barrel shot CCI SV good as well as high end ammo.  Only had light strike when I installed the Lilja barrel and set the headspace at .045.  It’s down to .041 and has shot good.  No malfunctions/light strikes so far.

Those with the 457 did you shape the firing pin yet?

Inspector and some here warned me about reading RimfireCentral. There are lots of pages about this issue.

Are you looking to get a CZ457?

I’m not really one to tweak stuff like FCG, firing pin, etc. But who knows, y’all pushing me down the rabbit hole. I might try it if OEM firing pins are easy to come by.

Not me.  I never felt the need to.  Stock mtr barrel shot CCI SV good as well as high end ammo.  Only had light strike when I installed the Lilja barrel and set the headspace at .045.  It’s down to .041 and has shot good.  No malfunctions/light strikes so far.

I’ve read good things about the MTR model/barrels. Makes me want to get one. Haha

Inspector and some here warned me about reading RimfireCentral. There are lots of pages about this issue.

Are you looking to get a CZ457?

I’m not really one to tweak stuff like FCG, firing pin, etc. But who knows, y’all pushing me down the rabbit hole. I might try it if OEM firing pins are easy to come by.

No just wondering if shaping the pin on a 457 made any difference. 

Rimfire central if you follow or chat with the right guys they’ll give you tips or tricks that actually made a difference.

At the end of the day you have to test for yourself what works and what doesn’t work on your gun.

U gotta try Bushido's hurt feelings steel.

The "Hurt your feelings targets" will separate the men from the boys. Very very few have taken the challenge. Put them at unknown distances and that quadruples the skill and wind calls. Hella fun though

The "Hurt your feelings targets" will separate the men from the boys. Very very few have taken the challenge. Put them at unknown distances and that quadruples the skill and wind calls. Hella fun though

I’m down. Will hopefully have better feel for drops as I shoot the 22 more. Wind, that’s another story.

Reserve the left rifle side benches like those other clubs. Can have a fun shoot.