This conversion wouldn't work as the case head sizes aren't the same. You would need a new bolt and who knows what else.
As the .30 Rem is based on the 30-30 Win. but rimless, you might look into converting some 30-30 by turning off the rim and cutting an extractor groove. (This really isn't as hard as it may sound if you have access to a lathe)
Years ago I had a Standard Model G. That is the one that, with the "flip of a
switch", would convert from a pump to an gas operated auto. Fascinating gun, wish I still had it.