I'm glad that I'm not the only one who does this.
I asked a friend the other night while watching a western with the bandit's wearing ammo belts over their shoulders with what looked to be 7x57 ammo in while shooting a Winchester 73 how they managed to shoot a 7x57 round in a rifle designed for something along the line of a 44-40.
Then there is the show Wanted. Here is Mr Randal packing a cut down 1886 Winchester that fires a 45-70, but with that cut down version the magazine tube will hold 3 rounds at the most. And he can shoot that weapon a dozen times without reloading.