Anyplace have 455 barrels in stock?? Also, a rant about barrel length...

[Rorge Retson]

I know the 455 is discontinued, but I want the 455's 16-inch barrels.  Anyone know where to get them?

[Rant on]

I can't believe that all the new 457 rifles (with the exception of the synthetic) have 25" barrels.  Why?  22LR powder runs out long before 16", even 22WMR runs out at 16" ... 

https://www.ballisticsbytheinch.com/22mag.html

I called CZ USA and they said that everyone wanted longer barrels.  The guy sounded like he was 15 years old so I didn't even bother arguing with him.   

I know in Europe they are obsessed with barrel length, so I can only assume that CZ is catering to them, and they forgot about the good old US of A.   

WTH?

[/rant]

[Fuzzy Sights]

https://riflebarrels.com/rimfire-precision-barrels/

Not cheap but excellent quality.

JW

[Peashooter67]

The powder may be completely consumed by 16” but the pressure from the powder is still pushing the projectile.

With out getting into another long drawn out discussion about powder burn, pressure, and velocity plus a few other variables it don’t really matter.

All mine have 20” and one with a threaded 16” that I have had a chance to put on paper.

If it is that big of a deal just have your barrel shortened.

I wish I could get a 24-27” bull barrel but I can’t to the best of my knowledge. Cz offers a longe MTR barrel but it’s best described as a tapered bull.


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[Rorge Retson]

The powder may be completely consumed by 16” but the pressure from the powder is still pushing the projectile.

With out getting into another long drawn out discussion about powder burn, pressure, and velocity plus a few other variables it don’t really matter.

So you're saying that even though a barrel over 16" is isn't helpful, it's not harmful, either, is that right?

My point is, if it's not helpful, then why make a rifle less maneuverable, especially if I want to use a suppressor?

All mine have 20” and one with a threaded 16” that I have had a chance to put on paper.

If it is that big of a deal just have your barrel shortened.

If CZ made bare stainless barrels that would be fine.  But only selling nitrided chromoly barrels complicates the issue.

I wish I could get a 24-27” bull barrel but I can’t to the best of my knowledge. Cz offers a longe MTR barrel but it’s best described as a tapered bull.

Making a 25" bull barrel makes a lot more sense than making a 25" American profile barrel.  Which one will you want more distance and accuracy from, and which one will you want less weight and more maneuverability from?

I think we should both get what we want.  The way they did things this year seems pretty tone-deaf to the U.S. public - they seem to be importing European standards into the U.S. market, which is just dumb IMO.

[George16]

My 457 Varmint rifle has a 20.5” bull barrel.



457 pro varmint with 16.5” barrel
https://cz-usa.com/product/cz-457-provarmint-suppressor-ready/

[Peashooter67]

So you're saying that even though a barrel over 16" is isn't helpful, it's not harmful, either, is that right?

No

It’s both helpful and not harmful. The bullet is still speeding up and stabilizing. Not so much on stabilizing.

The pressure is still high and exerting pressure on the bullet.

If your using open sights the longer sighting radius helps in your aim/accuracy.

There is still some arguments saying that the bullet hasn’t fully stabilized till about 19” inches or so from the combustion and acceleration. I don’t argue for or against as many 16” barrels are very accurate.

The barrel length issue is there is not a lot of difference between 16” and 24” barrels and velocity but below 16” you start losing velocity quickly for every inch below 16” as the powder is still burning and pressure is still building.

At approximately 16” powder is burned and near full pressure is realized. The .22lr bullet does not start to slow down till around 24 to 26 inches.

What you get for example with a bench rifle that has a 24” v’s a 16” barrel is a bit less recoil or barrel jump and less rifle movement shot to shot compared to a short barreled rifle built for the same purpose.

A walking woods gun with a 24” pencil barrel v’s a 16” pencil barrel is sight radius and sight radius equals better sighting accuracy.

Both examples as much preference as function all things being equal.


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[DWARREN]

My long barreled CZ's shoot very well, better than the shorter barrels.

[danmac]

CZ has this one in stock..

https://shop.cz-usa.com/cz-457-mtr-sr-barrel-set-22lr-16-5in-nitride.html

[Regulator32]

The 25" bbl on my recently purchased 457 22lr was objectionable to me.  Simply solution is....and I did, cut it to the desired length and re-crown.  I cut mine to 16 1/4".  Result: Zero loss in accurracy.  Shoots every bit as well as the 25 incher and a whale of a lot handier!  I love it when a plan comes together!!

[Rorge Retson]

The 25" bbl on my recently purchased 457 22lr was objectionable to me.  Simply solution is....and I did, cut it to the desired length and re-crown.  I cut mine to 16 1/4".  Result: Zero loss in accurracy.  Shoots every bit as well as the 25 incher and a whale of a lot handier!  I love it when a plan comes together!!

Did you do it yourself or have someone do it?  If someone else did it, who did it, and how much did it cost?

Was the barrel nitrided?  If so, how did you refinish it after cutting it?

[Gunnar 419]

Barrel Lengths .... New to bolt action long range shooting. With that said , I did so much research BEFORE Buying my CZ 457 Varmint Precision Chassis at a 16 inch barrel length. Everything I've read / seen on YouTuber channels says velocity of the ammo makes a BIG difference on accuracy. The 40 grain 1000 FPS ammo is what a 16 inch & 18 inch barrel prefer in accuracy. Conversely a 1600 FPS 40 grain 22LR round is LESS Accurate out of that 16 to 18 inch barrel. The longer the barrel the more velocity is required to overcome that barrel length & be accurate. So matching the velocity to the barrel is really a Big part of being accurate. My thought BEFORE Buying my bolt action 457 ( 1st bolt action rifle ) rifle after researching was the 1000 FPS Match Type ammo was easier to find / cheaper to Buy than the higher velocity ammo better matched to longer barrels. 

[Regulator32]

I pulled the barrel off and took it to my local gunsmith here in Fairbanks and told him to cut it to 16 1/4" and put an 11 degree target crown on it and 2 days later it was done.  Cost was $45.00.  The barrel was nitrided and he finished the crown off so it matched up great. Great job and a simple solution for an old reprobate that's big on short barrels.

[Peashooter67]

Barrel Lengths .... The longer the barrel the more velocity is required to overcome that barrel length & be accurate.

Don’t tell my match 54 1411 this, if it finds out it will quit squirting rws50 out into .38” groups at 50y..

Edit.

I believe my match 54 has a 26” or longer barrel. With a tuner it looks like a miniature artillery piece.

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[Creeker]

20 inch is my favorite because of sound. But I can live with 18.

[Cinimod]

I shot bench rest matches out to 200 yds and all the factory cz’s are 16”, Tika’s 20”, Bergara B14R’s 18”, Vudoo’s 18” or 20”. All the Rimfire ammo is subsonic and each has rifle has one brand of ammo it shots the best. The longer the barrel doesn’t mean you’re going to be closer to the target. The rifle isn’t any better than the person behind it.