yes. the 5.56 is the 223 caliber ammo.
NO, NO, NO, NO, NO, NO, NO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! DO NOT EVEN TRY TO DO THIS!!!!!!!!!!!!!!
These were made for Gamble's Stores by Savage, and are caliber .22 LR.
Yes.
Caliber is .243, buy ammo in .243.
It was offered in more than one caliber.
With civiian ammo, it is the caliber. Military ammo- year made, and where
read top of barrel. it will tell you the caliber bullet it shoots............
22 caliber ammo
On the barrel of most guns produced, the proper caliber/gauge is stamped as well as size/ type. That being said I think the model 16 was a semi-auto .22 caliber, firing a .22 caliber long rifle round.
Different calibers. The Model 19 is in caliber 9x19mm, the Model 23 is a .40 caliber. The 19 holds more ammo in the standard magazine. External dimensions and weight are the same.
No way of telling without knowing make and model of the firearm.