ping, this doesn't exactly answer your question, but I have my Ciener mag feed a .22 "snapcap" as the last round. They only last a few times, through. If I get ten go-throughs through before the aft end cracks and falls off, it's a miracle; they usually crack enough that they won't feed after about seven or eight times under the FP. That FTFeed acts as a poor-man's hold-open and gives me a chance to practice failure drills.
(For a hold-open, I'm currently trying to decide if I want to replace/supplement the Ciener with a Jarvis.)
D.
(For a hold-open, I'm currently trying to decide if I want to replace/supplement the Ciener with a Jarvis.)
D.