It seems to have an awful lot of range. It should be used as a corner/indirect weapon, not a rocket launcher. (picture #1)
Also, for this and your other weapons, they shouldn't need to reload every time you use them. Make them reload on use if you interrupt the reload sequence by putting it away after firing. For instance, if I want to use the Lupara, I can't just run out of cover, fire my other stun-gun weapon (hint) to keep them in place and then start unloading my shots into them because it suddenly starts reloading when I already did that ages ago. Also, it should automatically start to reload if you fire one or two shots out of the six (or one out of two) and then stop for a second, so you can be prepared for next combat. You could be able to click at any time during the reload to fire the other shots, though, if attacked. I like the idea of having reloading weapons for balance, but the current problem makes them hard to use effectively.