DIY Bullet Trap

Garage shooting range?
Decided to make a bullet trap for my suppressed 22s.
* 27 gal Tote w/ 5.5 bags of rubber mulch.
* 3 bags are unopened.
* 2.5 poured over the unopened bags to fill gaps.
* Lid is zip tied to tub.

For added safety put out dated bullet proof vest on the bottom of the tub then put the mulch on top of it.