I have never had to degoop a wood stock rifle but have messed with that nasty stuff enough to know that heat is your friend.
A large metal garbage can or 55 gal barrel makes a quick oven using a 1000 watt Halogen light. It starts to melt and ooze out of everywhere. Then it just collects on the bottom and you don't have to touch as much of it.
Whatever clothes you wear are gonna stink like cosmo, so if ya toss your clothes in the hamper with the rest of your laundry there is a good chance your ol lady's favorite sweater will be in that batch. AMHIK :evil:
We have a large gas fired parts washer at work that gets to 190* and the soap solution in it cleans that stuff off of metal and plastic parts in no time flat.
All ya have to do when you pull stuff out is let it flash and then spray it down with some oil so it don't rust.
But for those without a large dishwasher the can oven works well.
I have used the hair dryer method and that can be rather messy, especially if it is just loaded with it. You wind up with a giant reeking pile of rags.
I use carb cleaner to finish removing it. Don't waste $$ on brake clean, the new stuff on the market isn't good for anything.