[T.B. Yoits]

In all fairness, I have no idea what the arrangement is; how many yards, benched, prone, off-hand...

...or the prison guards bent the barrels just a bit.

(It's not like they let you bring your own gun).

[paulcissa]

My guess is they use duty weapons from the systems arsenal. Same weapons that have been carried in and out of stations over and over. Service weapons get the snot beat out of them.