Caution should be taken in using most if not all paste waxes, especially any that purport to be a wax and polish, because they contain abrasives. The abrasives are likely finely ground zeolites or calcite, which are relatively soft and used in toothpaste, or worse, silica, which eventually will abrade the barrels, especially if blued. With enough polishing I'm sure the contrast could be polished off composite barrels also. I use the IBIZ because it guaranteed to be pure carnuba with no abrasives at all. Carnub is the "wax" in all Johnsons waxes and is an extremely hard substance. The story of how the Johnson's flew around South America in a sea plane back in the day looking for the source trees for carnuba is fascinating. Somehow years ago I looked into the least abrasive paste wax and came up with Armorall as the best. Can't remember how I determined that.
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