10 magazines loaded w/ 25 rounds each in an AR/22. That can last a reasonable 15 minutes. Take time for refills, etc and you can EASILY shoot 1k rounds in a single session.
Or...a single round can take down a deer and feed a family for a week.
Guess it all depends on how you wanna look at things. 20k rounds of ammo sounds insane to some. To others, it sounds like a good start.
The Original USMCsilver©.
"Kiss my ass, I bought a boat! I'm goin' out to sea..." (Jimmy Buffett covering Lovett)