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ΜΟΛΩΝ ΛΑΒ&
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I saw these at Wally World the other day and recall them being mentioned in passing somewhere in this forum.

What are their advantages and disadvantages? What success or failure have you had with them?
 

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I saw these at Wally World the other day and recall them being mentioned in passing somewhere in this forum.

What are their advantages and disadvantages? What success or failure have you had with them?
Are you talking about the .22 CB Shorts here?

Primary advantage - low noise
Secondary advantage - reduced "power" when desired.

Common usage around here is clearing barns of unwanted pigeons. Very shallow penetration of wood (eliminating undesirable holes in roofs).

Primary disadvantage - must be shot with a gun that shoots "Shorts."
Secondary disadvantage - reduced "power" when it is NOT desired.

Essentially, they allow your .22 to perform comparable to a .22 air rifle.

I keep 100 rds. or so of them around for close-range pest control.

longman
 

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The ones you are probably referring to are 22LRs from Aguilla in Mexico. They are actually made for use in silenced weapons. Even in a normal gun the report is greatly reduced. In some guns cycling of the weapon can be impaired. You may have to manually cycle the rounds if not in a revolver.
 

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All bark, no bite
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Excellent for squirrel hunting. Very quiet.

One squirrel to another: "I heard a pop and Elmer fell out of the tree", "I wonder if he is OK ?"

One disadvantage is a substantial sight adjustment from your HV ammo.
 

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I like RWS Subsonic HP ammo. It is designed to be particularly quiet. I like to shoot it with my 25" barreled CZ-452. The impact in the little bullet trap I use at home is louder than the discharge of the gun itself. A poor man's silencer.
 

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I have heard that another advantage to subsonic is that they don't suffer stability issues passing throught the sonic barrier. Depending on far out your 'target' is, a hyper velocity (super sonic) round may slow to sub sonic speeds and experience stability issues (read: loss of accuracy) passing through the sonic barrier.

I have not personally tested the matter.

-Per.
 

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The two primary advantages are less noise and frequently better accuracy. Most “subsonic” rounds run about 1050 fps from a rifle. Don’t overlook standard velocity, which run about 1070 fps and are often cheaper. Either can be more accurate in your gun than HV rounds. Shoot a few groups with a variety of ammo and see which works best.
 

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How quiet are they compared to a .177 pellet gun?
Depending on what pellet gun you have, the muzzle report will be louder with the .22lr. But if you have a pellet gun that shoots supersonic, then you'll have a supersonice "crack" of a pellet flying downrange. This will be much louder than a .22 subsonic lightly wizzing through the air.
 

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Depends on which one. Best of them in temrs of power is the Aguila Sniper SubSonic. its a 60Grain Hunk of lead on a .22 Short case. It will cycle reliably in my 10/22. I've fired around 150 Rounds of it. It is powerful for what it is, but is limited in practical range- trajectory arcs badly. It is very quiet though, especially in a 22 Inch barrel.
 

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I've not had any success with subsonic .22 cycling through my Marlin 60.
Have you tried CCI Subsonic or their Standard Velocity? I'm amazed at how it will cycle my P22 pistol when some high velocity ammo won't (like Remington, I think it was).

Also, a watchout for the Aguila SSS mentioned above-- It's basicly a long .22 bullet in a .22 short case. The case doesn't always "seal" the chamber closed and can eject before the pressure drops. When it does this, you end up with a really loud crack coming out of the ejection port. Between this and the fact they are really finicky to eject (because of the short case) I never bother with them anymore. Oh and you need a faster twist rate than normal to stabilize it too. They were very accurate out of my 1 in 7 twist AR with a .22 conversion, though. They're extremely gun dependant, so just buy a bit and experiment to see how they'll work.
 

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Happiness is 2 at low 8
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Depends on which one. Best of them in temrs of power is the Aguila Sniper SubSonic. its a 60Grain Hunk of lead on a .22 Short case. It will cycle reliably in my 10/22. I've fired around 150 Rounds of it. It is powerful for what it is, but is limited in practical range- trajectory arcs badly. It is very quiet though, especially in a 22 Inch barrel.
In my Ruger 22/45 I couldn't tell the difference in report between the Subsonic Sniper and the HV promotional ammo I normally shoot... That 60 gr bullet is one large chunk of lead hanging off the end of that puny little casing...

Allan
 

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ΜΟΛΩΝ ΛΑΒ&
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Saturday morning, I used a subsonic .22 through my 10/22 to take a rabbit on the way to my deer stand. A friend was 30 yards ahead of me in his truck and never heard the shot.

I was about 1/4 mile from the stand about an hour before the feeder went off. It did not affect the number of deer I saw that morning.
 

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http://en.wikipedia.org/wiki/.22_Long_Rifle
From wikipedia:

Suppressed Ruger MK II(22) pistols are in current use by the US Navy SEALs.

Subsonic rounds have a muzzle velocity of 330 meters (1080 ft) per second or less. These rounds are sometimes equipped with extra heavy bullets of 46–61 grain (2.9–3.9 gram) to improve the terminal ballistics of the slower projectile. Conversely, the rounds can contain little more than primer and an extra-light bullet.

Subsonic rounds are favored because of slightly superior accuracy and reduction in noise. Supersonic rounds produce a loud crack which can scare away animals when hunting. Accuracy is improved with subsonic rounds, because any supersonic bullet (or projectile) that slows down from supersonic to subsonic speed undergoes drastic aerodynamic changes in this transonic zone that might adversely effect the stability and accuracy of the bullet. Additionally, the use of subsonic rounds may reduce wastage of meat due to the effects of a high-velocity round passing and destroying tissue.[citation needed]

Because the speed of sound in air at 68 °F (20 °C) is approximately 1126 feet (343.4 m) per second, the subsonic round's muzzle velocity is slightly below the speed of sound, under many hunting conditions. However, under cold air conditions at 32 °F (0 °C), the speed of sound drops to 1088 feet (331.5 m) per second, approximately muzzle velocity. Hence, a "subsonic" round used in these temperatures would be supersonic, and when its speed passes from supersonic to subsonic, it may become unstable, reducing accuracy. To counteract this, some cartridge manufacturers have lowered the speed of their subsonic ammunition to 1030 feet (315 m) per second, or significantly less.

Some subsonic rounds do not work well in most semi-automatic .22 LR firearms, often failing to cycle the action because there's not enough recoil energy. Other subsonic rounds use heavier bullets that achieve lower velocities in order to ensure that, with a more massive bullet, there is enough energy to cycle any common blow-back action. An example of this is the Aguila .22 LR "Sniper" round, which has a 60-grain (3.9 g) bullet. However, this can cause other problems: the more massive bullet of the Aguila cartridge, being longer, requires a tighter barrel twist (by the Greenhill formula) to ensure that the bullet remains stable in flight.
 

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many older 22 rifle and handguns are not proofed for high velocity ammo so the must use the standard velocity ammo. when i asked 2 different ammunition manufacters if subsonic ammo was loaded to standard velocity preasures both refused to answer. some older guns not proofed to high velocity ammo are pre 1934 colt woodmen pistols,and marlin model 1892-1897 and early model 39's. if you used high velocity ammo in these for any extended time they will break.
 

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How quiet are they compared to a .177 pellet gun?
The CCI subsonics make about as much sound as an air gun...very quiet. The Remington Subsonics makes more noise, but still much less than a a standard .22LR round. The CCI's also cost a lot more and are harder to find for me and they will not eject from my 10/22, you have to eject them one at a time.
 
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