I've had and used several of these splendid little rifles including the sideloader 1891, it's the oldest firearms design IN THE WORLD remaining in continuous production from its inception, almost 120 years now.
Feeding in the earlier examples is sometimes iffy, the factory offered to retro-fit the later cartridge cutoff and top cartridge guide to earlier rifles. Relining is slightly more difficult than with most other 22RFs because of the number & shape of the breech relief cuts for the extractor and boltface extensions.
I suggest that your reliner smith use a 'Bentz' reamer and chamber the new liner to MINIMUM headspace, it'll allow you to take full advantage of the little Marlin's built-in propensity for fine accuracy.
Regards, Joe
