Don't use your foot or the ground as a rest ever again. Please. This is the solution that avid clay target shooters use for resting and waiting along the shooting line. It protects your barrel(s) from inadvertently resting on the ground. With your gun unloaded, you can place its barrel(s) down on the XL Leather Barrel Rest on the ground, and take the weight off your arms for a few minutes.
Magnetic Insert. You can use the magnetic insert to hold the rest on the barrel, which is helpful if you are moving from station to station, and it holds on even with the action broken. Don't forget to remove the pad when it comes time to load and shoot. Step on the extended portion and lift your barrels away, leaving the rest on the ground.
Remember: Always remove the pad from the barrel when the chamber is loaded.