I have a box of WinUSA from about the same time as when I got the gun. While I can push then in the chamber, it takes a fair amount of thumbnail to pull them back out. I think the slide would close on them, but it shouldn't be that tight.
Drugs are bad because if you do drugs you're a hippie and hippies suck.
"If you kill enough of them, they stop fighting."-General Curtis E. LeMay