I like what i see here!But we must consider needler as a mid- or even high-tier weapon and making ammo for it should be a little bit complicated. That what have been said about scorpion tails, alloys and junk is ok. But those scorpion tails need to be in number at least 5 becuse of its weight. If you don't have slave or cow you can't make tons of ammo at one run. It seems to be fair this way.