Honestly, all of its perks are pretty much useless. The returning ammo after missing is hardly noticeable if at all, the explosion is only good for packs of weak mobs which happens once in a blue moon and isn't all too useful. The regenerating ammo is actually useful for cheesing nightfall bosses and generally sitting back picking everything off from a safe distance without using ammo packs, but I see your point. I hardly ever have a problem with special ammo anyway in this game. Also, all of it's other perks besides the attack boost are 100% useless except for maybe snapshot in pvp. It's best use is the fact it has 6 rounds in the chamber and you can pull 7 or 8 off before depleting, which is a lot of damage without having to reload. I've had the weapon since the first week the game came out and have used it exclusively since then on all content the game has to offer, and while since then it's been my personal favorite weapon, I can honestly say that it is not as good of a weapon as it appears to be. All these people freaking out over it kind of leaves me scratching my head. Suros is a better exotic to take up that weapon slot anyway.