For most of us married folks, it's 15 total. I replaced some guns with beautiful daughters so I'm good. :)
I'm limited by safe space now!
Nice find. The Mini 30 is not cheap or plentiful. If you use foreign military surplus ammo in it, consider the priming is corrosive. Ruger's stainless steel will corrode. So clean it with Windex in the field and boiling water and detergent at home. The gas piston and op-rod are often overlooked. Some of the foreign military ammo has "hard" primers and the stock Ruger hammer spring will lightly dent the primer but not fire. If you have that come up, check with Wollf Gunsprings for an "extra power" hammer spring. You do not have to disassemble the trigger group (don't try) to install a new hammer spring.
Save your reloadable brass empties, and enjoy your new toy.