t.v. hunting show

This past Sun. (9-15) I watched a husband & wife (mid-aged) team both shoot big bucks with muzzle-loaders in Oklahoma. I am interested in the brand of gun that it was,unfortunately I can not remember the brand or the name of the couple or even the name of the show. All that I remember is that it was a .45 caliber & the shot was approx. 300 yds. & the gun had an unique ignition system With a Leupold scope. Can any one tell me the name of the show or the brand of the gun? I don't recall it being a popular brand.  thanks   sam

dpms, I wasn't paying too much attention,but it looked like a Rem.700  & it looked like they had a new ignition system that used a primer inside a cartridge that they put in the chamber. I am familiar with most brands,but didn't recognise this one.Although I love black-powder hunting I have no interest in in-lines .That is why I didn't retain any of what I was watching. I was just curious about the ignition. I am thinking that these are custom made.    sam

dpms, I posted a reply but it disappeared somehow. I finally found it,the show was called Brush Country Monsters, I guess it is on weekly,it is another deer farming show. The hunters name is Allan Mcwhorter. The rifle was an .45 cal so-called muzzle-loader with a 600yd. range. The gun is custom made with a ignition that consists of a cartridge that loads like a regular rifle. That was what interested me.  sam