I personally would not "Winter camo a rifle. I camo them,
but come winter, I just get a couple of rolls of Vet Wrap,
from the local farm supply store. This is a type of self
adhesive roll wrap, used for horse ankles, and such. It comes
in white, and forms to any shape. Just wrap the rifle,
when the snow flies, and unwrap the rifle, when it goes
brown/green again, or the rifle gets wet, and needs to
be dried, cleaned, and lubed. It's relatively cheap,
leaves no residue, and allows any pretty rifle, or camo
rifle, to become a winter rifle.
Just a thought.
Squeeze