.22 subsonic

Johnny_Zanni said:
I think subsonics are usually around 710fps I don't know exactly though.
Click to expand...

yeah i think 710 is the normal for 22's listed as "subsonic", but standard velocity would be subsonic too though since it's still under the speed of sound. cci standard velocity is just a bit under the speed of sound, like 1000-1100 i think
 
Any place that sells CCI ammunition is a potential source for CB(conical ball aka solid) short and longs @ 710fps. The short and long just denotes brass length as everything else is identical.

Remington also makes the CBee .22lr round which is a hollow point @ 740fps.

Rates up here for either of these is $8-11 per 100 and are available at the local gun shop and Canadian tire. I don't think the walmart here stocks them.

Either of these rounds sounds about like a pellet gun out of a 20" barrel. Maybe a little bit louder but not much.
 
Johnny_Zanni said:
I think subsonics are usually around 710fps I don't know exactly though.
Click to expand...

Suputin said:
No, you don't.

Aguila SSS is not approved for sale in Canada and is thus extremely difficult to find. Thus it is very expensive. It is not very accurate because the long heavy bullet won't properly stabilize in most rifles. And in the end it is no more quiet than any other subsonic.

Virtually all match ammo is subsonic because crossing the sonic barrier tends to upset the bullet and affect accuracy.

It is important to keep in mind that the sonic barrier is in fact not a single velocity but a range. It is more correctly refered to as the transonic range. Thus if at sea level the speed of sound is 1150 fps a bullet would need to be down around 1050 fps to avoid the transonic range.
Click to expand...

A lot of misinformation in this thread. I've done some pretty in depth chrono work with .22's, and here's the facts I can relate that pertain to what we're discussing here (haven't chrono'd CCI Quiets or Rem CBs):

-A CCI short case CB averages 705.1 fps, the long case is slightly slower, due to less efficient burning of the same powder charge. Both contain powder and are not powered by the primer as some old BB caps were. CB caps are extremely inconsistent and as a result inaccurate, the extreme spread in my tests was 249fps (low 527 fps, high 776fps), with a standard deviation of 70fps. Pretty bad I wish CCI could up the quality control on them as the ones that run the same velocity were actually quite accurate for me.

-Remington Subsonics averaged 1,000fps, subsonics do not run at 710fps, CBs do. :)

-Aguila 60gr SSS has shot extremely well for me in everything except a 4.75" pistol (still grouped well at 25 yards, but keyholed), and functioned my 10/22 and a Mark II perfectly. I've shot it from a 10" barrel 1:16" and it stabilized just swell, and was extremely accurate averaging 840fps. It also out penetrated each of the dozen loads I tested by far in spruce planks, penetrating just under 5" of spruce. It is a superb round, that I've found to shoot accurately from a Springfield M6, 10/22, and 10" pistol and functioned the semis perfectly. It was also the most consistent .22 round I tested, high velocity, low velocity, short case or long case combined, with a standard deviation of 6 fps and an extreme spread of 25 fps. Honestly it may well be my favourite .22 round.
 
I buy Remington Subsonics at Wholesale Sports when they have them is stock, out of the many different brands and types of 22 ammo I have tried they are consistently the most accurate in my 10/22.
 
Ardent, I've the same experience with Aguila SSS. It will kill alligators at 60 yds, is accurate although it seems really dirty. Ive had good success with them.
 
You must log in or register to reply here.
Back
Top Bottom