Supposedly the overall cartridge length is the same for the .45ACP and the .460 Rowland. However, I just looked at the Hodgdon reloading site and it shows the .460 Rowland being .070 overall longer than the .45ACP. So I don't know about interchangeability.
The 45 ACP, 45 Super and 460 have to be loaded to a cartridge over all length that will work through the magazine. From any practical stand point they are the same length and powder capacity.
I know that's true but I wonder how they get the higher velocities if all things are equal.
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All things are not equal, to get more velocity is very simple. Just add a bit more powder which increases pressure thus increasing velocity. This is not brain surgery.
Just because length and capacity are basically equal it is als obvious that pressures are not equal.
Thanks, but it is brain surgery for me, just like political philosophy and history is brain surgery for most on here.
So, while the overall length might be the same the oversize cases contain just a smidgen more powder thereby increasing pressure and velocity. Okay I think I have now.
