I really like the PCC especially for home defense, in my opinion stick to real soft projectiles, the 9mm+P with achieve full power 357 Sig velocities.I really like the 40s&w, it’s been available when other’s weren’t and it downloads well like 45acp.
Is it a advantage over 9mm?
Not anymore.
I have no interest in 10mm but a 10mm carbine sounds fun and probably a good house gun.
That's a rib breaking energy dump against even level 3 soft armor.