No, the 22 Mag will not fit.
No
yes
No.
No
Only what it is chambered for.
Can I shoot 380acp caliber out of my 32 pistol?
You need to submit the kind of firearm is it? Pistol, rifle, shotgun?
Your marlin should be marked on the side of the barrel as to which type of 22 ammo it needs.example of 22 short,22long.22 long rifle,22magnum.
No. 38 Special only.
NO!!
a gunsmith needs to check both the ammo and rifle.
yes. the 5.56 is the 223 caliber ammo.