Range is fine, but the base damage was taken too low. Increase the damage for all auto rifles, the TTK of an Auto vs a Pulse or HC is not comparable at all. Not even close. Let's take a poll to see if I am full of crap.
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The only weapon I think needs a nerf in pvp is the fusion rifle from VoG, it's the only weapon I consistently lose to. With Auto Rifles I will win most of the time by going for headshots. It seems balanced to me, if they were given a buff I couldn't imagine losing at all against any weapon other than a sniper long range a shotty close or another auto rifle mid range.