If you've seen this, and I'm late to the party sorry, but this was new to me.
So our lead firearms instructor shows up at quarterly training with two cans of this:
3M 77 Spray Adhesive
Seems he went to shoot with some guys from another agency, and that's how they hang new paper targets instead of using staple guns. He said it was much better than the old staple guns. Just spray a box for the edges and an X from corner to corner, and slap on the new targets.
Turns out he was right, and it was great.
No more jammed staple guns. No more cut hands on staples protruding through the cardboard backers. Less problem of targets ripping due to a gust of wind catching an edge between staples. Also, its much faster to hang new targets than stapling.
More than a decade of stapling up paper targets, with the associated punctures and rips from the protruding staples, and this very simple idea never occurred to me before.
Anyway, in case you've never seen it, I thought I'd share.