Marketing. Like any other finish, durability depends on what material is used. Most commercial hunting shotguns don't get roughly used so any of the finishes will do nicely. The patterns are licensed from the trade mark owner. Real Tree and Mossy Oak, for example.
I suspect for a specific length of time too. I seem to recall Remington using Real Tree at one time, but they use Mossy Oak now.
I'd just pick the shotgun and cammo pattern you like or look into Duracoat.
__________________
Spelling and grammar count!
|