It by no means jammed on any ammo. Ayoob noted that LA Sherriff’s dept. analyzed 1 to 10,000 rounds with +P+ devoid of breakage or appreciable dress in. I continue to kick myself for advertising it.They did have some pre-1940 rifles with number codes. I had a good chortle in the online video mainly because one of them remarked that a 1938 model w