Since never, I am just gathering facts.
The game warden did only recommend
"Black Powder or a powder that is designed to be a substitute for Black Powder (ex: Triple - 7; Clean Shot; Pryrodex, etc)". NOT SMOKELESS POWDER!
I asked Wisconsin game warden following questions in an email:
During the Wisconsin 7 day special muzzle loading season can someone legally use accurate arm's smokeless powder 5744? The Savage model 10ML that is capable of safely using smokeless powder instead of black powder or black powder substitute. Can you clarify if 5744 smokeless powder is legal to use as a black powder substitute in Wisconsin, during the 7 day special muzzle loading season? Is it legal because it doesn't say "no smokeless powder allowed". See this link for the smokeless powder I am talking about
http://www.accuratearms.com/data/5744.htm The Wisconsin game warden emailed me the following:
The powder you mentioned is legal during any season while hunting with a muzzleloader. Why? Because of the way our state law is worded. Our wardens simply cannot make arrests for someone using smokeless powder in a muzzleloader.
Having said that, I would be remiss if I did not advise against this. As an educator I must recommend that anytime a person is hunting or shooting with a muzzleloader firearm that they use Black Powder or a powder that is designed to be a substitute for Black Powder (ex: Triple - 7; Clean Shot; Pryrodex, etc). The propensity for an unwanted accident is simple too high for me to recommend using anything other than what I've stated. The firearm you mentioned, the Savage 110ML, would certainly be the only commercially noted model that could or would withstand the pressures of smokeless powder. This is why the muzzleloader community recommends against use of smokeless powder in any muzzleloader...period.
Again, the powder you mentioned is legal for muzzleloader hunting in Wisconsin.