Last week, I received a new MGM barrel in 45-70 that I had out to the range Saturday. Their instructions were actually pretty short (or I glossed over the long boring parts). I cleaned, shot 2, cleaned, shot 2 and cleaned again and shot ~40. At the end I was getting 3 shots touching @ 100 yards with loads that it liked. The throat had been honed after reaming due to a miss communication on my end (note to self, don't send in neck sized dummy rounds for a new barrel) but i was very happy with the performance.