EXACTLY- I guess since I don't shoot factory ammo in anything but rimfires, I look to a ctgs. capacity and possible bullet weights, which is why I noted in my original post, proper twist rate and throating for shooting a good bullet.

Just because originally it was a lever-gun ctg., it's 2.58" length and use in a single shot give it the capacity of almost a 3" case. People who've done a bunch of loading/chambering/experimentation should understand this.

Bonanza's load puts his .405 double into the .450/400 factory load range of actual velocities. The are no flies on this loading. Is it a stopping rifle - hell now, but it is a terrific hunting rifle. In that calibre, a 350gr. of modern construction still has plenty of sectional density & the capability of being driven another 100 to 150fps. Wonderful gun for all of North America, and much better than the 9.3 on our heavy, dangerous game.

Each to his own - but don't look at poor bullet perfomance in factory ammo in Teddy's day as being the way it is today.