Thanks for all the info and response. As a non-technical person, I have remaining questions:

1. Do these different barrel materials have differences in the "surface texture" (or pores?) that would make some harder to thoroughly clean?

2. Do some barrels "retain crud" more than others due to metal composition?

3. Is the amount of barrel interior polishing done by the manufacturer a significant factor affecting cleaning time?

gold40


Last edited by gold40; 11/03/16 11:05 AM.