super colibri long rifle?

[Housezealot]

I recently tried these Aguila super colibri "long rifle" rounds and really like how quite they are for plinking cans, however to call the long rifle is kind of a joke, obviously the wont cycle a semi auto. I would be ok cycling the gun manual but they don't feed well from a magazine (and not at all in my .22A S&W)
does any body know of a full length alternative?
also my k22 master piece doesn't seem to have enough umph to set them off consistently which is weird becuse i have never had a problem with any other ammo in that gun.

 

[chris in va]

Yeah, I don't know why they're called 'long rifle' as they are slightly shorter than a 'long' cartridge. They're fun anyway out of my Kadet, even if I have to manually cycle it.