CCI quiets

Don't have a suppressed arm. but I recently used Quiet22 in a semi-auto pistol, two semi-auto rifles, and an M6 Scout .22/.410

CCI Quiet22 (40gr bullet at 710 fps) is like a Long Rifle version of the CCI CB Long (29gr bullet at 720 fps).

It may well be the case that the reduced velocity represents reduced pressure, less case expansion, and more gas leakage at the chamber which could result in noticeable noise at the breech end of a suppressed .22

Does the Quiet22 leave more powder residue on the bolt face or on the breech end of the barrels than left by the .22 std vel?

I tested a couple different .22 loads in my CZ 455 and Ruger 22/45 with a suppressor. The CCI Quiet was hands down winner. The tested included CCI SV, Aquila subsonic, and some Winchester suppressor ammo.

I did not notice any unusual smoke coming from the breech.

The CCI quiet rounds are MUCH quieter in both my Single-Ten revolver, and 10/22 semi-auto. Zero problems, period.

SC45-70 said:

Pre pandemic I bought a carton of CCI quiet 22 ammo. I thought that they would be very quiet in my suppressed XT22 and Suppressed Contender.

They are actually louder in both guns than CCI standard velocity ammo. They make a pop sound that comes out of the breech in both guns, I can see smoke come out of the breech.

It's like they don't have enough chamber pressure to seal the breech.

I'm not impressed, anybody else have this problem when shooting CCI quiets suppressed?

SC45-70

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Sounds like Carl N. Brown nailed it.

The question is, In a suppressed rifle (aka a .22 rifle with a silencer) are the Quiet22 rounds (40 gr at 710 fps) noiser at the breech end than standard velocity .22 LR (40 gr at 1080 fps) due to less obturation at the chamber?

My experience does not answer that question. But I am happy with Quiet22 (40gr lead roundnose). The CCI Quiet22 is as quiet as a CCI CB Long in my ArmaLite AR-7 (16" factory barrel). I did not notice smoke at the breech. Neither Quiet22 nor CB Long move the AR-7 bolt and I can use it as a straight-pull bolt action with the Quiet22 and CB Long. Magazine feeding Quiet22 in a gun designed for .22 Long Rifle is more reliable than feeding CB Long, which is one reason for me to switch to Quiet22 over CB Long for quiet plinking, plus the muzzle energy is 44 ft/lb vs 33 ft/lb for CB Long should I want to use a .22 for small game or pest control.

I have a relative who owns a suppressed .22 bolt action rifle, and when I visit, I may take long some Quiet22 and Standard Vel .22 LR, run some comparisons for my own curiosity.

Interesting, I tried a box of the CCI with the 60 grain bullet out of a couple of my revolvers and it was not real noisy running them un suppressed. I still like the CB caps and the super Corliberli for quiet rounds in the yard to keep piece with the neighbors. One complained when I was using the Ramset to attach brackets to my cement wall outside years ago.

Interesting. I wish I had a suppressed gun to test.

I do know that CCI Quiets fired out of non-suppressed 24" barrels is low noise enough that I can fire them indoors without hearing protection. Of course, most of the noise is definitely over 2 feet away from your head and not perceptible at the chamber.

They are making a popping sound because the breech is opening too early. Try that ammunition in a bolt gun.

I haven't fired them in a while but as I recall the loudest noise when fired in my Marlin 60 was the pop of the bullet from the wood backstop.

I have a bunch of boxes of those things I bought after I tried some. Intended them for after I get around to getting the first can. Had never heard this so now sounds like it may not have been worth bothering with getting them. Is strange. Wonder if maybe it's that they are so much less blast at muzzle that the sound at breech is more noticeable??? If someone has a DB meter would be interesting to see them tested with one.
First box I bought of them long ago was just tossed on an order to play. In my Ruger MK's they of course would not cycle the bolt but did not cause jams. Just have to manually cycle slide each time. They are VERY quiet compared to anything else. When no one was in there with me I tried with no muffs on inside and it was not uncomfortable. They were shocking accurate. I was shooting so well off hand I had to put up a makeshift rest and try. My pistols really liked them. Figured for those who live where they can legally shoot pests but have neighbors close enough they do not want the sound these would be ideal. Again would love to see someone with a meter check and see how these stack up with a pistol with a can.

My Kimber Custom Classic gets a steady diet of CCI Quiets for squirrels, armadillos, etc.; they are hunting accurate and the report is more like the release of a pellet rifle than a regular .22 rifle round. My rifle is not suppressed and has a 22” barrel. In my experience, they are the sound like a pop rather than the louder crack of a .22. Again, I use them all of the time and they perform as advertised for me - no complaints.

Not suppressed, but the CCI Quiets have a significantly lower noise signature than CCI Standards in my family's fixed breech rifles.

The CCI Quiet and Segmented Quiet are very quiet for lack of a better word from my Savage Target .22. It has a 22 inch barrel and seems to enjoy them. They also shoot well from my old Remington Target Master. Perhaps try a longer barreled bolt rifle.

Another interesting experience from when I had a Beretta Neos with Carbine Kit. That Neos Carbine would actually cycle CCI Quiets. Not 100%, but over 80% of the time at least.

I figure it had something to do with the slide and recoil spring of the Neos being designed for pistol length barrels, and there I was using that slide and spring with a 16" barrel. Not that I could change the slide and spring to heavier versions, cause there were none. So, a little more time that a Quiet would spend in a barrel creating a bit more pressure to push against those pistol weighted components?

I haven't tried a side-by-side comparison. The Quiets aren't strong enough to eject reliably from my Browning Buckmark with or without a suppressor. They are very quiet in my suppressed CZ 452 American. You've got me curious, so I'll have to do a comparison next time I'm at the range. Might be a while, as my range will be closing this weekend for a month for reconstruction.

I bought a variety of 'quiet' loads for dispatching rats and snakes around the horse barn and house. Shooting them in an old stevens pump works out better than my marlin 60 as cycling varies a lot. CCI shorts don't seem any better than standard velocity LR ammo. The Remington cbee22 marketed as quiet don't seem appreciably better. Cci quiets are ok. The Aguila super cobris are definitely the quietest of the group, with less noise that my springer airguns. I havent bought the regular cobris since people have reports of stoppages in barrels over 10 inches, though I did see a guy shooting them years ago in a rough rider at an outdoor range. With muffs on I could not hear it firing from a few yards away.

If you can find them I’ve been very happy with CCI Suppressor 22’s, extremely quiet and accurate in my 10/22 with a Dead Air Mask suppressor. I haven’t tried the Quiet’s in mine.

SC45-70 said:

Pre pandemic I bought a carton of CCI quiet 22 ammo. I thought that they would be very quiet in my suppressed XT22 and Suppressed Contender.

They are actually louder in both guns than CCI standard velocity ammo. They make a pop sound that comes out of the breech in both guns, I can see smoke come out of the breech.

It's like they don't have enough chamber pressure to seal the breech.

I'm not impressed, anybody else have this problem when shooting CCI quiets suppressed?

SC45-70

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I had a reason to compare the CCI quiets to the CCI CB caps as we wanted a round that was REALLY silent to use in a city.

The CCI CB caps beat the snot out of the other rounds and out of a barrel at least 16",they were not than capable of removing the small game that was a issue.

And did so with a fast dispatch that appeared humane too.

Has anyone tried adapting CCI Quiet 22 to an autoloader? I've got an old Colt pre-Woodsman. It feeds and fires the Quiets just fine, but I have to manually cycle the slide. My thoughts were to get a new recoil spring and progressively cut coils off of it until I reach a point where the Quiets will cycle properly, then cut one more coil off to make certain.

Any reason I should not do this... other than that I might forget which spring is in the gun?

SC45-70 said:

They are actually louder in both guns than CCI standard velocity ammo. They make a pop sound that comes out of the breech in both guns, I can see smoke come out of the breech.

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Sounds a lot like too slow powder. CCI Standards are cheap, subsonic and loaded with powder fast enough to burn completely even in short barrels. I've shot several bricks of them suppressed every year for over two decades without problems. They're whisper quiet with a quality suppressor, the most notable sounds being the firing pin snap, a faint whizzing flight noise and the bullet hitting the target.