👉 Diameter of the bore of a firearm, typically measured between opposite lands.
Alright class, settle down, let’s take a peek, At this word that’s tricky, complex and sleek! “Cal” is a term you’ll often find, When talking about firearms, one of a kind. The dictionary's right, it gives us the key, "Diameter of the bore," for all to see! Let's break it down with a little rhyme, To make this concept perfectly sublime: “Cal” represents caliber , you agree? It’s the width of the barrel, for accuracy and glee. Specifically, it measures the space, Between the lands – that’s a crucial place! (Lands are the raised ridges, you see, Within the barrel's hollow decree.) Think of it like this: a hole so wide, The bullet will travel with confident stride. So, “Cal” is short for caliber true, Let that understanding shine through! Any questions popping up today? Don’t be shy, Let's discuss and learn, reaching for the sky!"