I do believe you're right. I just double checked the thread that led me to believe that the two terms were not in the same post.
This post (#41) was the first in the list: http://www.thefiringline.com/forums/...11#post2355775
You will note that the occurance of "1911" in that post is not highlighted, but it is there. I missed it the first time. Now scroll up that page of the thread and you'll see several other occurences of "9mm" highlighted with no 1911's. Then in post #30, it has 1911 highlighted and no 9mm's. That's what led me to believe the found terms were in separate posts in the thread.