Do-All Outdoors Impact Seal Self Healing Double Prairie Dog Target Self Heals Upon Impact Handles 2,000+ rounds Design allows for all calibers .22LR - 50 Cal Rifles In addition to this self healing design and the 8 Prairie Dog Shape, the target stand is easily 2-3 times thicker and sturdier than that of any comparable targets. This material is rugged enough to handle the repeated punishment from all calibers .22 Rimfire all the way up to the mighty 50 BMG.