I have not had any problems resizing Privi brass.
You can make you own sizing lube with 99% ISO alcohol & 100% lanolin oil (health food store)
85% ISO +15% lanolin should do the trick. Pour it into a old pump spray bottle.
I was running around my 1/2 acre yard shooting the feral chickens. My neighbors were probably silently cheering me on. And... I don't need to worry about breaking anyone's window with the plastic pellets my toy Krink shoots!