The PSR-01 is probably the best spudgun in the world. There may be bigger and louder, but this precision potato cannon holds my record for the most fun to be had with potatoes.
Close-up of the breech loader mod, close position.
The small-bore breech, open position.
A typical projectile to launch from the spud rfile. It's a 1" dowel with a bolt screwed to the end for stability in flight.