Would you use this?

For the shotgun loads, maybe. For the "meant to go though a rifled barrel" loads, no way!

Have you ever listened to this?

Haha yes, I love it when my rounds tumble to the target.

You’ll Need full sleeve barrel adapters in order to work properly with all the different load patterns

Shotgun yes, bullets no way 💯

Wouldn’t the smaller caliber ammo accuracy suck pretty bad?

Nope, your patterns would suck.

Bullet goes…

If it's not made for it don't do it. Those barrels are rated to handle specific rounds and pressures. You're playing a game of FAFO if you do this.

There is this thing called pressure that is needed to make a round lethal. That set up would lack pressure for everything other than the 12 gauge shell.

The shotgun Shells adapter looks safe, I just wouldn’t stack them. But shooting the regular ammo will suck precision-wise, the bullet will tumble af