Good quality billiard cloth is a very good choice and comes as close to the worsted wool fabrics originally used way back when. They may even look better, as the worsted wool often shows its cross-weave a bit more prominently than I like. A yard-and-a-half will do just about any break-down, single gun case, and I've never needed more than two yards for a large two-gun (paired) case. Hope that helps.....


Rob