Great, I have a Knight muzzy as well that takes the discs. I hadn't heard that. I do know that they sell a breach plug and you can convert to a #11 cap (since the 209 is illegal in some states) but that would be a last resort since the dics and 209 caps are much better.
When hunting whitetails there are many different languages being spoken afield that I key on when outdoors. All these little creatures living around whitetails have something to tell us if we are willing to listen.
My favorite tattletales of the outdoors are a handful of little birds that live in my state of Ohio. Maybe yours too. A tip for the upcoming season.
There are Blue Jays, Cardinals, Chickadees, Killdeer, and Sparrows that all have language...