M1 Garand Rifle Grenades - How, Why, What?

We've all seen rifle grenades being used in footage or movies, but how do they actually work?

How do you use them?
How do you aim them?
How'd they design them to be safe to use in the first widely deployed semi-automatic rifle?
Any other questions?

The answers are in this video, along with high speed footage!

https://www.patreon.com/InRangeTV

Видео M1 Garand Rifle Grenades - How, Why, What? канала InRangeTV