SpudFiles

Blitz wrote: Mon Apr 12, 2021 7:38 pm 40mm is a pretty odd size here in the US but it'd be somewhat similar. Definitely a bit smaller.

40mm is the diameter of choice https://en.wikipedia.org/wiki/40_mm_grenade

I'm familiar with 40mm grenades and 37mm, and other projectiles, but that doesn't make 40mm any less of an odd pipe diameter in the United States. Not out to make a grenade launcher, you know.