I've had trouble keeping Remingtons turning, too, and I was using real BP. Actually, it was duPont FFFg...that puts it back a ways. I've been pondering this for some time...I think that if you got a thread-cutting die, preferably an adjustable one, that was oversize for the cylinder pin, and ran it down the pin where the cylinder bears on it, BEING CAREFUL TO CUT THE THREADS LIGHTLY ENOUGH TO SAVE THE DIAMETER, you might be able to produce something similar to the grease grooves on a Colt. Maybe. Anybody heard of this being tried?