I think I have the ultimate newbie questions.
What do the caliber numbers mean?
Example, 45-70, 45 being the caliber of the bullet but what is the 70?
Example, 7mm-08, what is the 08?
What does 223, or 762x39 mean in definition?
same with 12,20,10,410 gauge? a 410 is same as 45 right? bond arms makes a pistol that shoots either or.
Also where did they get the caliber numbers from?
Is it just a diameter measurement & does that apply to all ammo fired from a pistol,rifle & so on...?
I know, dumb questions, but at least you got a laugh out of it right?
I have never understood what all these numbers mean Or why there are so many.
will anyone please explain?