Originally Posted by Spad2137
If you had everything needed to start from scratch to custom make your own caliber (money, tools, knowledge, etc) what would you create?... Varmint? Target? Large game? Handgun?
At first my thoughts were, 'Why?', what's out there works well and has been refined over the years.
Then I got into the thought.
Keeping it simple, I will go only with pistol rounds.
For hunting with a pistol, a large fat heavy bullet traveling pretty fast meets my criteria. That sounds like a .44 Mag. And a revolver handles all sorts of loads indiscriminately.
For self defense, a large fat, but not so fat that magazine capacities suffer, medium weight expanding bullet at reasonable velocity out of a solid auto loader, is my standard on need. That is a .45ACP or to a lesser degree a .40S&W.
Yes, there are several other existing rounds that can or could meet the above requirements but this is what I'm working with.
The .44 Mag is actually .429/.430... The .45ACP is actually .451/.452... We will split the difference with a true caliber of .440. Two cases are needed. One being a longer heavy rimmed version for use in a revolver. The second being a shorter rimless version for use in an auto.
Chamber up your favored revolver and auto loader for the appropriate case. Load up 180 to 200 grain SWC to 1000 to 1200 FPS for the auto and what ever you want for the revolver. Utilize the same concept as the 1917 Colt/S&W revolvers for .45ACPs, use 'C' or 'O' clips, the 'moon clips', in the revolver.
The premiss is or was 'custom make your own caliber' and that is mine. In reality, I'll stick with my .44s and .45s and .40 cals and deal with non interchangeable ammunition. After all, what we have has been and is continually being refined. I'm please with what is out there.