Here's a lovely new 12-gage shotgun SLUG weighing 1-1/3 ounces --- intended for one thing only: stopping "vertical aggressors."

Boldface below is in the original, looking at OATH Ammunition's Tango shotgun round. There are several excellent photos with this article, but the single most effective is comparing this TSR round to a flattened-out 124-grain Gold Dot 9mm. (Go see!)

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The main feature of this projectile is the extreme degree of expansion. With the muzzle energy of 1925 foot-pounds, more than five times that of 45ACP, any normally constructed slug would blow right through the relatively soft-skinned vertical aggressor and keep on traveling through the matchstick and veneer houses typical of the American suburbia. TSR, initially .70 caliber, expands to 2.6 inches, with six sturdy, sharp petals widening the frontal area by around 460%. The hollow base becomes a ring to decrease the amount of resistance the projectile encounters in the middle: it's not like the half-inch wide meat cylinder that will squeeze through it would remain viable tissue. All that adds up to a ragged wound channel over two and a half inches across and about a foot deep!

( . . . ) Compared to buckshot, it has much greater terminal effect and range. Since hydraulic pressure is required for expansion, this slug does an excellent job of defeating barriers like auto body sheet metal and glass. Compared to other slugs, it gives the widest channel into the vitals of the aggressors without much risk of over-penetration.

http://www.alloutdoor.com/2016/04/14/oath-12ga-tsr-slug/