Double Barrel Alt Fire Glitch

During the reload animation, before you put the shells in the double barrel, if you held down alt fire for ~250ms or more before then, you will shoot a single shell instead of 2 shells.

Doesn't matter if let go of your key well before the reload animation finishes.

You can basically 100% reproduce this. The "250ms" is just a guess, I'm not sure the exact minimum value.

Happens offline or online.

Double Barrel Alt Fire Glitch