What is the range on singularity grenades?
Solution 1:
I have also tested this and figured it was around 10 yards. Tried to look myself for some info about the grenades but all I found was the Borderlands Wiki page that contains some information about each type of grenade.
B2 Grenades
From the table you can see that the Singularity grenade is Manufactured by Hyperion if you continue the Wiki there are some more infos about Hyperion like damage/accuracy. Hyperion
I hope this info will give you a little more you can work on when testing them.