Late last year, while shooting our trail alone, I ran out of patches, so I started walking back out, and along the way, picked up dropped pre-cuts that I found along the trail. I used them all, and never missed a shot. But I know that all the folks who shoot our trail use good and appropriate material for their patches. Double patches, as when you are trying to use a .50 cal ball in a .54 cal rifle, don't work.