Phil: Few 80 year old locks couldn't benefit from a tune up. After thousands of shots, the upper edge of the tip of the sear (usually the right) becomes rounded, causing a inconsistant trigger pull or doubling



My lowly 1906 00 was worked over, the resultant crisp pull was a thing of awe and wonder, and significantly helped my hopeless flinch. You are blessed with LOTS of fellas in Michigan and Wisconsin who could do the job, while also resolving the wandering pin issue.