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It’s not uncommon, however, for lead shooters to find themselves facing a nasty layer of lead left in the bore. Lead fouling must be removed, because it raises gas pressures and lowers accuracy. Once leaded, the bore will get worse – very quickly.

How do you know if your bore is leaded? First clean the barrel normally, then examine it carefully. The easiest way to do this is to open the cylinder, triple check that it is indeed empty, and put a small piece of white paper over the firing pin hole. Hold the gun so that light is reflected off the paper and into the barrel while you look through the muzzle at the paper.

As you look down the bore, focus on the forcing cone. Leading shows up as an irregular or bumpy surface which contrasts with the smooth, shiny surface of a normal bore. Leading is the same color from this perspective, so pay attention to the texture and sheen. Leading almost always starts just past the forcing cone, and as it gets worse extends further and further down the bore.