CB long and shorts (CCI) have the same ballistic properties, but longs will probably shoot more accurately from a LR chamber. It has been my experience anyway.

Ran some very informal and unscientific sound meter tests awhile back with them versus the CCI sub sonic LR ammo. Noise levels at 10', perpendicular to the bore, were within a few Db of each other. The sound from the CBs is more a function of barrel length (expansion ratio) than the round. They still make a loud pop from a pistol barrel.

I have found the CCI CB short very accurate and useful from a short chambered rifle. 50 yards from a rest:

[Linked Image]

They are, despite their "feeble" velocity, quite lethal:

[Linked Image]

I am..........disturbed.

Concerning the difference between man and the jackass: some observers hold that there isn't any. But this wrongs the jackass. -Twain