Blank firing M1 Garand malfunctioning. Any ideas?
I recently had the honor of working on some M1s set up for blank firing for an Honor Guard. They were malfunctioning and I offered to look at them. They were dirty and gummed up from years of dirty blanks. After a good cleaning one still wouldn't function. All used the same lot of blanks, they were cleaned like a recruit in boot camp did it. I didn't have time to switch components between guns. I did notice that the crimps on blanks fired in this rifle didn't seem to open as much as they did in the other guns. Could it be a back pressure issue?
I would like to get this rifle functioning, it's for a good cause. Any ideas?