Adamantium Shells

Adamantium Shells halve the range of the weapon, but deal increased damage in a cone in front of the weapon.  They increase the damage to 6d12 in a 10' cone in front of the gun, which can be halved by a Dexterity Saving throw equal with DC = 10 + Proficiency + Dexterity Modifier. Firing adamantium shells increases the misfire score of the weapon by 2.