I tried some of the Colibri .22 ammo last weekend. It's a round made by Aguila (in Mexico) with a 20 grain, cone-tipped bullet and no powder -- the bullet is propelled by the primer only.
As you might expect, this round was extremely quiet. It made my 5.5" pistol sound the way silenced pistols sound in the movies, with just a little "psssssht" noise. Recoil was similarly mild; the red dot in my UltraDot sight jiggled just a bit upon firing.
The bad news is that 25 yard accuracy was terrible. Five rounds made a group about a foot wide and 18" below the point of aim.
I'm hoping that shortening the range to about 20 feet will bring better results. At least the ammo is fairly cheap (about $2.50 a box of 50) so I can afford to experiment.
As you might expect, this round was extremely quiet. It made my 5.5" pistol sound the way silenced pistols sound in the movies, with just a little "psssssht" noise. Recoil was similarly mild; the red dot in my UltraDot sight jiggled just a bit upon firing.
The bad news is that 25 yard accuracy was terrible. Five rounds made a group about a foot wide and 18" below the point of aim.
I'm hoping that shortening the range to about 20 feet will bring better results. At least the ammo is fairly cheap (about $2.50 a box of 50) so I can afford to experiment.