Tiny bullet i.d. needed

[Trentonfrank]

I found this little guy today in a new permission. Its so small but it has 3 rings (grooves) at the base. Its smaller than a .22 bullet and I'm wondering if anyone knows its age or who would use it in what type of gun. Any help is greatly appreciated. Thanks.

Frank

 

[Tedyoh]

Without exact diameter measurements maybe the 2mm Kolibri, it's bullet diameter is 2.7mm or around .1'"


https://en.m.wikipedia.org/wiki/2mm_Kolibri

Link below is a image comparison vs the .22

https://goo.gl/images/sHjpny

 

[Yak1366]

The patina looks old. And scaling from image..0.238?

 

[pistol-pete]

Looks exactly like a 22 Short bullet which is .221" and weighs 29 grains. A 2.7mm Kolibri bullet is .108"
and weighs 3 grains. In scaling to me it IS a 22 Short bullet.