I use a sawed off Mossberg 590/A1 12 guage, pump action, shotgun with pistol grip and folding stock.

Homeowner/Renter's insurance is fine but read the small print. I don't know about the US but where I live, a "normal" policy only insures media (tapes, CD's, DVD's, software, etc...) up to about $2,500 (or maybe it's $5,000 I don't remember exactly). The point is, it's not even close to covering a large collection. I bumped up the media coverage on my policy to $25,000 which was the max allowed for media. If you want even more coverage, you have to insure it as a collection, which is more expensive.