Sorry, but I'm going to have to question where you get "efficient" out of that. 50 pumps for a single 40' shot? Buy a Nitefinder.
Agreed. But a better dart/barrel fit might make this more effective.
Effective, no. More range, yes. Regardless of range though, 50 pumps for a single shot, no matter how fast you can pump those 50 up and no matter how far that shot goes, will not be effective in a war situation.
Wrong. If that shot goes 200+ feet and has 100% accuracy, I would consider it effective. If you can nail an enemy at that distance, you have time for 50 pumps.
I know that a 200' shot with 100% accuracy is virtually impossible.
Other than the ergonomics of the blaster, and if your barrel is freakishly short, what really affects range is the shooter. 100% accuracy is impossible. Even if that was the case, however, fine, hit one member of the other team at 200 ft. You now have several other people from said team after you while you're scrambling to re-pump your 50 times.
Regardless, this has nothing to do anymore with this blaster, so if you'd like to discuss the topic more, feel free to PM me. I don't mind debating...but I do where it doesn't belong.
As for the blaster, apparently people seem to be getting better results. Try a longer barrel, pump plug, and pumping it less times. You will certainly achieve better results.