Flintlock Pistols for Old School Gaming.

Got an idea for a Pirate gun.  Double Barrel Flintlock Pistol.  Does 1d12 damage, however when using it you need to roll a d6 at the same time.  As the nature of those guns were finicky,  if a 1 comes up, the gun backfires.  It takes one round of combat to re-load the gun.  At distances greater than short range, a -2 modifier is added to the attack roll due to flintlock's being only good for short range.