Most common for those that don’t know: 9mm & .40 for handgun, 5.56/.223 for rifle, 12ga shotgun. (These are the calibers used by police & military in case you need to ‘borrow’ ammo in an emergency)
7.62 & .308 are probably next up in rifle, then .380 for handgun…22LR is another good one to hoard.
Works both ways. Buy firearms in common calibers so you can stock up easily as well.
Most common for those that don’t know: 9mm & .40 for handgun, 5.56/.223 for rifle, 12ga shotgun. (These are the calibers used by police & military in case you need to ‘borrow’ ammo in an emergency)
7.62 & .308 are probably next up in rifle, then .380 for handgun…22LR is another good one to hoard.