I camo my M70FWT since 1990 for Winter coyote hunting. Use white hockey tape. Liberally cover entire firearm with gunoil, wrap this everywhere with cling wrap, and presto you have a weatherproof underlay to attach your hockey tape to.
This can stay in place throughout the whole season with all the associated condensation problems encountered, with no issues.
When the season is over in mid-spring, it will unravel as easy as it went on with no goo and no rust.
Zero your rifle with your coyote load after wrapping. Mine is pressure bedded at forearm so no accuracy prolems beyond what a walnut stock would normally give.
It worked for 20 seasons with the rifle staying wrapped for up to 4 months. You can imagine the hot/ cold cycles it goes through in that time and the resulting condensation. My finish on both stock and metal are fine. That plastic, oil filled cocoon, does the trick. Even the scope ,which is aluminum gets oiled and cling wrapped before white tape, just to prevent the glue from sticking there in spring.
Why not just wrap with cling and then tape some might ask?...... You will trap any moisture present in room at that time between the palstic and the steel, and be in for a nasty surprise come spring. So Oil everything liberally first.
You'll have to experiment with the total rifle wrap to get everything protected and still function properly. My floorplate has to stay blind all season, the only change.
This is the only thing I would camo a firearm for. I don't hunt turkeys, but after seeing many crows circling 25 feet over me while calling and can't detect me in my winter whites, or my rifle, it tells me it works.
