Most imformative, Gew8805! Info like that keeps falling out of my head, and my books aren't handy when I have access to this internet thinggy.
Last time I shot any Pritchett bullets the accuracy was absymal, but the bore on my old 'P53 is kept clean lest its 150 some odd years-old goodness get jepordized! Its only drama is that it hits about 12 MOA to the right. Might try patching some of those bullets, if I can find them.