.224 BOZ --- period.
Close behind:
- 4.6x30mm HK (the weapons aren't for sale yet, but I've seen the ammo)
- 5.7x28mm FN
- Hotrod necked-down cartridges like the Dillon, already mentioned
For common combat pistols that you could actually find at a store and get factory ammo for, my guesses would be
- 7.62x25 Tokarev
- .357 sig
Desert eagle in .357 might be another option but to me that doesn't qualify as "normal"
Close behind:
- 4.6x30mm HK (the weapons aren't for sale yet, but I've seen the ammo)
- 5.7x28mm FN
- Hotrod necked-down cartridges like the Dillon, already mentioned
For common combat pistols that you could actually find at a store and get factory ammo for, my guesses would be
- 7.62x25 Tokarev
- .357 sig
Desert eagle in .357 might be another option but to me that doesn't qualify as "normal"