- Location
- St. Joe's Island, Ont
So I was digging through a box of old ammo in the garage and I found some old rimfire ammo. I've come to the conclusion using my calipers that 3 of them are 32 rimfire and 3 others are 38 rimfire but I've got a dozen shells of something here that I can't match to any other rimfire charts.
Dimensions are 1.389 overall, 0.437 rim diameter, 0.377 case diameter and 0.860 case length.
Anyone have an idea of what it is? These are unmarked cases.

Dimensions are 1.389 overall, 0.437 rim diameter, 0.377 case diameter and 0.860 case length.
Anyone have an idea of what it is? These are unmarked cases.
