IMO the 10 gauge is obsolete. Reason being is 3" 1/2 Magnum 12 gauge has the same ballistics of a 10 gauge with just slightly less shot, with the option of lighter 3" and 2 3/8th loads.
Well, IMO, you're right for all the ninja stuff, but for big, decoy shy birds with steel T shot, not so much. H&R and Browning chamber it, think the Remington Mag 10 may still be available, but don't know for sure. My bud has a BPS 10, heavy, but brings the geese down. I've never shot a 12 gauge shell that patterns as well.
This is goose hunting country around Eagle Lake, Texas. Over in El Campo at the Walmart, they don't have any 12 gauge 3.5" Ts or anything else. I've been wanting to pick up a box to pattern my Mossberg 535. BUT, they have THREE ROWS stacked deep and high of 10 gauge 3.5" T shot.
I know where to get ammo for my next goose hunt.
Nah, the 10 ain't near as dead as the 16. If you lived in goose hunting country, you'd probably realize that. And, it's a lot more popular than the much lauded 28 gauge, though for a different game entirely. Heck, around here, 10 gauge ammo FAR out sells these and .410. If the 10's obsolete, where does that leave the .410, the .28, and the 16? Yes, Virginia, there is more to life than the 12 and the 20.
But, yeah, not for home defense or blowing knobs off doors, which is what this thread is about. No, for any sort of defense or combat, the 20 and the 12 pretty much are it IMHO. I ain't cuttin' the choke off MY 10 gauge!!!!!!!!!!!!.