No problem firing with combination 7X57R over 12 GA barrel set. Removed that, installed 20 ga O/U set, and went to the range.

Loaded two rounds of Rem target loads. Fired front trigger and opened to check which barrel had fired. Action would only open part way. Top barrel had fired.

Didn’t want to bring gun home with live round, so closed action and fired rear barrel as well.

Tried everything but still not opening. Tried half dozen times to remove the barrel set, and it will not come out.

Removed the buttstock, and gave whatever I could get to a dose of WD40. I know better, but that’s all I have here at the moment. Letting it all rest until tomorrow.

Okay, Gentlemen, what are your thoughts on this? Broken firing pin? If so, how do I get to it on this BRNO.

Thanks for your help,
Ted