I have shot mine for about 7 years with up to #5 lead mainly for crows when the leaves are off the trees. When patterning after I first got it, I saw no wad/blown pattern issues on the paper. The only issue I have ever heard of with this much overbore is possibly wad skirts not flaring/sealing properly in cold weather(>10 F). I have not shot mine in >15 F on paper so I don't know if that is a real issue or not.

W. E. Boyd