"I only have 3 rounds left"
[Puts two into the guy before running away]
[Puts another three into the guy in the ambush]
[Deadchecks the guy with another round]
...Now I'm no fucking mathematical genius, but I think 5 or 6 is more than 3.
And, oh, this is after he supposedly emptied his handgun into the mechanical dogs last chapter and had no money to his name enough to buy ammo. So unless the shota is carrying spare magazines up his ass or something, he's pulling some Hollywood reloading moves.