On Thu, 23 Jun 2011 06:22:43 -0700 (PDT), Rex
wrote:

On Jun 23, 7:58*am, john B. wrote:
On Wed, 22 Jun 2011 19:30:04 -0700, "Bob La Londe"



wrote:
I was just looking at an old Sportman's Guide catalog before tossing it in
the trash. *One item that caught my eye was a .223 adaptor to use a 209
primer to launch a .22 caliber air gun pellet. *What kind of energy is that
going to develop? *What kind of muzzle velocity will that generate? *It
might be a nice way to practice pulling the trigger and get some short range
target practice with your bolt action .223, although I would be hesitant to
use it in an auto.

The thing though is they advertise it for pest control. *Seems to me for
short range even a pump air gun would be far more economical. *As a kid I
killed a lot of gophers for the bounty with my Daisy 880. *Spring piston
guns are so mush more powerful, and now with the gas spring guns on the
market for a few years you don't have to worry about leaving them ready to
flip the safety and fire killing the spring.

Not even considering the PCP guns. *How does this 209 primer propelled .22
pellet compare to a pellet fired out of a pellet gun?

A "CB Cap", a small cartridge using the primer for propellant; using a
29 gr. bullet has a MV of about 725 ft./sec. Probably similar to the
adapter.

Somebody just needs to pull a bullet from a CB cap and put this to
rest.

I do know that Aquila makes two variations, one of which says "sans
poudre"
I shoot both the CB shorts and the sans poudre rounds. The CB shorts
do indeed have a little powder and will shoot safely in a rifle. The
sans poudre (no powder) rounds will not make it out of a rifle barrel
that isn't worn. My old pump Remington .22 is kind of shot out and the
sans poudre bullets make it out of the barrel. My Remington bolt
action hasn't had quite so many bullets pass through it and the
bullets from the sans poudre rounds don't quite make it out. The box
for the sans poudre rounds says that they should only be used in
pistols.
Eric