A friend of mine and I were discussing calibers and came to the conclusion that having a gun in 7.5 FK would be cool. However, where we live (Switzerland) the caliber is verboten as in armor piercing (which is one level below the lethality of AK-74 poison bullets as we know). So no one is thinking about importing them as the ammo is equally unobtainium, dies are non-existent, so is load data.
There is one version of the FK Brno pistol with a 10mm Auto conversion barrel which made us think.. how about we take a 10mm and neck it down to .30 cal using a modified 7.62x25mm (Tokarev) die and load it to max OAL of 32.00mm (10mm Auto OAL).
We also have a barrel manufacturer nearby that we may be able to talk into making barrels for a Glock 20 / 40..
Looking for opinions from the collective.. thank you gentlemen.