RE: questions-just converted my mk85 to a 209
cay, yep, I only got one misfire. And that was on a deer and after me bragging to people on forums that if you get a misfire, you don't know how to clean a ML.
The deal was, I fouled the bore with 15 shots at the range. And didn't take out the nipple and clean. Next day first day of ML, I saw a nice Sika deer and pop, no ignition. Then again another pop, no fire. Then my cheap ole No11 holder flipped out all my caps and I was in a treestand. Sikas generally don't run like a whitetail but stay perfectly still. Well, changed over the next week after shooting for almost 6 years with no problem.
I did lose accuracy with 209's in that gun. My No11's shot sub 2MOA at 100 yards, but the 209's made it shoot 2" at 50 yards.