My S&W 686-2 arrived with TWO of these beautiful walnut oiled leather bandoliers. Each holds 50 .38 or .357 rounds (25 each side).
See at:
Gun Holsters and Gun Magazines by Triple K :: #918 Pistol Bandolero
They've had ammo in them: case rims have made normal indentations in the leather, but no discoloration or damage.
Bandoliers aren't standard IDPA equipment, so I'll pass them on for half the new web price, or $44 each, plus actual shipping. PP, MO, F2F, etc.