WOW!!! that rifle will really shoot. That would be a good deer rifle.

I have some bullets here at the house that you should try in that rifle. They are .45 caliber.. well actually .40 caliber in a blue .45 caliber sabot. They are 180 grain Barnes Expanders MZ (muzzleloader). I was told by someone that they shoot real good out of Knight Rifles. And that is basically what you have there.