[Uncle Red]

I have two guesses/ reasons.
1. May need the longer BBL to fully burn the powder?
2. The longer your rifle is the easier it is to use it as a spear(with bayonet attached)
Don't know if ether guess is right. -UR.

 

[Uncle Red]

I don't mind reading a book if it means I'm gonna learn something. And I did learn from you. Thank you for the info. I'm not a bad guesser, right? -UR.