HA's advice is good but tis better to know than to worry unnecessarily.I get that, too. None of these need to be used, but it would be nice if they could be counted on.
Swab them out with the NJ or the Citric, or try both. Then find a local gunsmith with a bore scope and have him inspect the bores. Good to Go, Moderate, Severely Pitted, etc. Turn the 'severe' cases into wall hangers.
