Got my PRO in this last month and was wanting something to protect it because I carry the rifle in a tool bag... probably doesn't need it but it makes me feel better.
I priced out scope coats and wait times, but figured I need a project and had a lot of old neoprene sitting around in the form of wetsuits. I'm always up for an imaginative project.
1) getting a reasonably square piece out of a wetsuit was a bit of a challenge.
2) I've been wanting to try sewing with braided fishing line, I figure it would be good for webbing repairs etc, but I stored some and haven't had a project. That's a small sailmaker's needle, which turned out pretty good for this. The neoprene wasn't hard to sew.
3) Finished project. I put the 550 in there mostly because I wanted to know front from back. I'll trim the loose ends and put a drop of super glue on them.