Thanks a million Drew. I hope your poor wife didn't have to type all that info in! I was reading The Book into the wee hours of the night (around 2 a.m.) when I found the reference to "O" designating the Hunter One trigger. Do you suppose the April date referred to the date the barrel was finished? By the way, this is the gun we corresponded about, several months ago. I never did get the gun cabinet upside down, but I DO store the gun barrel down now, and have been shooting it quite a bit lately. Thanks again.