The Lyman Great Plains rifle in .54 caliber is a good choice. With the 1-60 twist it will be an exceptional roundball shooter. This rifle will have no problem taking deer for you. Since Wisconsin does not allow scopes and you would not want to scope a traditional rifle anyway for the most part, limit your shots to 100 yards and place that ball and the rest should be easy.

If you would rather shoot conicals, then get the Lyman Great Plains Hunter with the 1-32 twist and you should be able to find a good shooting conical load for that. I shoot a flintlock in Lyman's Trade Rifle in .54 caliber and it is a real good shooter.

D&R Sports used to be a good place to get a Lyman rifle but I have not been able to bring up their site. Perhaps they updated something. That's where I bought my Trade Rifle and got a great deal.

Welcome to the forum. I hunt deer with a muzzleloader even in our modern season and have never seemed to have a problem as long as the deer show up for the day....