Dr Hinkins' Smith was good for > 75,000
Sporting Life, Feb. 20, 1897
https://digital.la84.org/digital/collection/p17103coll17/id/47049
Dr. Hinkins of Chicago, has an L. C. Smith gun that was formerly used by Rolla Heikes. This gun was fired 60,000 times while in the possession of Mr. Heikes and has had over 15,000 shots fired from it since that time by Dr. Hinkins. This goes to show what the L. C. Smith gun will stand, as it is still tight and strong us a new gun.

It was probably a heavier Pigeon gun, but the usual loads then were 1 1/4 oz. 3 1/2 Dr.Eq. boomers

One of W.W. Greener's > 80,000
https://books.google.com/books?id=3HMCAAAAYAAJ&pg=PA353