"Best" is a very relative term. Some people swear by the M1911 pattern, while others may prefer striker fired pistols. The "best" one is which one suits you best.
the .45 Auto CBC is a cartridge for a Semi- Automatic Handgun.
There are currently no semi auto firearms on the market which chamber the .45 Long Colt.
1918
"Best" is a subjective term that means different things to different people. Are you talking about a revolver, semi-auto, single shot, full size, micro, mid, derringer, etc...
Sig
100-10000 USD
16 inches, as required by the NFA.
100-500 USD
.357 mag in revolver .45 auto in semi auto
'Best' is a highly subjective term, and one of the variables may be purpose. A military-style semi auto will not be the best for hunting or long range competition.
about 1913. value depends on overall condition....................
200-500 USD