I saw a 35 Marlin that had been rechambered to 35 lever pull. What is a 35 lever pull? Is it between a 35 Remington and 356?

You are probably refering to the 35 lever power. This was the 30/40 Krag neck expanded to take a 35 cal bullet, shortened to 2.2 inches and the rim turned to .500 inches, then fire formed to an almost straight case. It has a case capacity of 3.90 CC's while the case capacity of the 35 Rem is 3.35 CC's. It has .17 CC's more case capacity than the .356 or .358 Winchesters.

Lee L.