Aaaaahhhh yes, the Big Medicine!
That round made quite a reputation with a 300 grain bullet and fairly brisk velocities.
I knqw the .45-70 does pretty good with a 300 grainer and 2K+ velocity, but with a better sectional density, the .405 should dig deeper. You have to go to a bullet weight of 380 grains with the .45-70 to equal the .405's 300 grain SD.
Uncle Elmer didn't think so.He said the bullets for the .405 were too lightly constructed and poor penetration was common. He said the .35 Winchester gave much better penetration.
