Yes; just pick pick up some old ratty ragged thick blankets from a thrift store (if you don't happen to have some lying around in the attic - or on yer' bed
). Depending on the size, you can fold one a couple of times into about a four or five foot square and simply throw it on the ground beforre you drill. Don't throw it away, hang it up to dry if needed, roll it up and keep it for next time.
You can get mags with bumper pads on them - or put padding on them yourself too. But a cleanish soft surface is better of you are shooting in a static point. In addition to preventing scratches and dings, this keeps soil and grit from getting into them as well.