Tell me about it!
The biggest thing I have shot was a 155 MM Howitzer!
To almost 30 km!
I was in an artillery group headquarters. A couple of our battalions were 155 units. One was an M50 Honest John battalion. It is considered obsolete now but it was a 5,800 lb., 27' long rocket with a range of 12 miles and capable of carrying an atomic warhead.
Tortoises are so much easier.
And they usually won't take your finger off.
Mine was M-209 and that was slmost 30 years ago! How time flies. .....