"Steve W." fired this volley in news:jor08d$d7j$1
@dont-email.me:

If you are behind the shooter and in line or very close to the
centerline of his shots you can see the bullet as it travels.
Larger diameter is easier to see.

I carried an M1 "Grease Gun" for part of my tour in 'Nam. You definitely
could see the rounds going downrange with that weapon. Of course, .45ACP
ain't a very high velocity round to start with.

OTOH, it was a good "brush gun".

LLoyd