im new to muzzleloaders ive only hunted with shotguns until this year i used a buddys muzzleloader this year so i could extend my season, usually after shotgun season was out i was done for the year but tried it out and loved it, nothing like dropping a buck 150 yards out rather than waitin for it to come in closer and it never happens, anyway i went out and purchased a knight and a scope for it and im going to sight it in, i was up at wal-mart and noticed the had a laser device that is inserted into the end of the barrell it says it will work for .22 cal up to.50 cal being how my muzzleloader is a 50 cal will this thing work?, and if it will is it worth even using? will it sight it in without shooting?