Yeah NightmareX91 is right, just modify the bullet-4 projectile file. It should be at Starbound\assets\projectiles\guns\bullets\bullet-4 open the projectile file. You should get this Code: { "projectileName" : "bullet-4", "frames" : "bullet-4.png", "animationCycle" : 0.25, "armorPenetration" : 3, "frameNumber" : 1, "energyCostPerDamagePoint" : 16, "damageKindImage" : "icon.png", "pointLight" : false, "actionOnReap" : [ { "action" : "config", "file" : "/projectiles/explosions/bulletexplosion/bulletexplosion.config" } ], "power" : 5.0, "damageKind" : "default" } Just change the numbers of "armourPenetration" and "power" to increase damage.