Originally Posted by
carshooter
I worked in a high volume indoor shooting range for six years. The range had a policy prohibiting steel cased, core, or jacketed ammunition. In spite of that, wolf ammunition was common on the range. Almost weekly, someone had either a Mini 14 or AR with a round or case stuck in the chamber.
Initially, I felt it was lacquer gumming up the chamber. I came to realize that it was soot, carbon and a filthy chamber issue. I also came to realize that most of the shooters suffering issues from it didn't own or know what a chamber brush was. Of the malfunctions I cleared and observed, the debris in the chamber caused the lacquered steel case to stick.
FWIW, I never saw a malfunction with the polymer.