45 ACP. Have it checked by a gunsmith before firing.
abart 10
No such caliber, and no public SN records
You will have to shoot as many different bullet weights and brands as you can afford. Most weapons will show a preference for one or two.
22 Long Rifle
When you have unlimited ammo and it is only available as a PC mod of the game for COD BO2
you mod
You mod the game
What are you asking?
7.65 is .32 ACP
Unless there's a mod where guns use the same ammo, none
You have to mod, but there is a risk of getting banned in the process.
No. The rapid fire mod simply increases your bullets per second ratio.