Brownells Cerrosafe Chamber Casting Alloy 1 lb

Cerrosafe is a low-melting-point alloy designed for casting precise chamber impressions in firearms. Used by gunsmiths to accurately measure and identify chamber dimensions without damaging the barrel. The alloy shrinks slightly after cooling for easy removal, then expands back to true dimensions within hours, allowing accurate gauging. Ideal for headspace checks, chamber identification, and custom reloading die setup. Supplied in a 1 lb quantity.