They do get wavy unless you do a few very light coats,that is part of the reason I glue them to cardboard. You are right,they do stink for a while.I will have to checkout the Rite in the Rain paper,sounds like a great option.Did the clearcoat thing for today. It worked but the targets have that paint odor and the sheets get slightly wavy.
Ordered some Rite in the Rain printable paper sheets to try next time out.
Exactly what I doPut them in a plastic sleeve. Get them cheap at Staples or other office supply stores.
Rite in the Rain, the company that makes those little water proof notebooks, now makes targets.
https://www.riteintherain.com/targets