Dillon Precision has a good one for $65. It's got a skid-resistant elbow pad area, and the ground side is moisture-resistant. The remainder is tan ballistic nylon and closed-cell foam. It's 70"x27.27" and comes with carry handles and a shoulder strap for when it's buckled into a roll. Stock number is [b]A43-18146[/b].
They also have the Eagle shooting mat/rifle case that serves both purposes well. It's got padded backpack straps and can serve as a drag-bag. It's about double the price, though, at $129.95, and is 47.5"x29". Stock number is [b]A43-17984[/b]
Look 'em up at [url]www.dillonprecision.com[/url].
I normally use Dillon, even if I can get something cheaper elsewhere, because Mike Dillon has proved to be "one of the good guys" and has gone to bat for gunowners on MANY occasions, putting his money where his mouth is. I called up one time asking a technical question, and I was directed to Mike, not some flunky. That made a good impression on me, since he took time out of his day for some guy who hadn't bought anything yet. (I wound up getting an XL-650 anyway)
Semper Fi!
Ken Little