That holy ray is equal to a 60 hit arrest raygun in ata total, but it has rifle range. Dark is also one of the targets you'd want to snipe cause of scorpions, granted I'd rather have ab or so on my ray to help with mutant flower hunting from a distance (cause humar and huney can use holy ray and it is their 1 rifle they can use) but n or d is ok as well.
So easily 10 IMO, might be able to squeeze out a few more even.