If interested, click on the following link to see pic of my Guardian on the test server holding tripple barrel shotgun he just looted! Fires 9 rounds of high grade ammo each time you pull trigger. And hits 'em hard! Haha.
so what lvl do the multi barrel shotties come into play anyway?
# Double-barrel shotguns: Will appear at Level 23. These shotguns do more damage that standard shot guns, but don’t get too trigger happy just yet. These shotguns fire slower, consume twice the ammo, and gain heat faster. # Tri-barrel shotguns: Will appear at Level 34. These shotguns do more damage as well, and have a wider arc. And just like the double-barrel shotguns, you must be wise with your shots, because in addition to their awesome fire power, these shotguns fire slower, consume triple the ammo, and gain heat faster than standard shotguns.
Oh, drat these computers. They're so naughty and so complex. I could pinch them. -Marvin the Martian-