My Bostitch N75C coil nailer jams regularly with 2.5" galvanized casing nails, occasionally with 3" casing, rarely with 2.25" ring siding nails and 2.5" common, never with 3" common. I have to drive the pin back with a drift to unjam the nail. Running 100 psi. It also sometimes throws a nail out of the feed mechanism. Only 2 months old, no heavy use. A few drops of oil daily when in use
Air Tools & Compressors - Stanley - Bostitch N75c1 Coil Sheathing Siding Nailer