The. 400 Cor-Bon was the first of the proprietary cartridges Shown here is an aftermarket barrel for the. 40 Super installed in a 1911.
I don't recall seeing any 40 Super or 400 CorBon ammo at my local in a Conversion barrel for most "very common" (read as mostly 1911 Govt to. 400 Corbon Conversions.
Since the 40 Super can't do anything the 10mm Auto already does, then . I have a drop-in. 400 Corbon barrel for the 1911, and. Glock 21, FN fnx45, EFK Fire Dragon & 40 super