It was going to be in an area where I have recently seen fresh sign of feral grunters, and wanted a rifle with me just in case.
Knowing that it would also be creating quite a bit of dust, I came up with a novel idea for disposable see thru lens covers.
The old fashioned condom ( Glad Wrap and rubber bands. )
When I finished, I just started the compressor, and blew down the rifle itself, then peeled the glad wrap off.
