I believe both weapons are equal honestly. That's coming from a shot gunner who sucks at sniping. How ironic. I originally sucked with shottys and only really succeeded with them after getting Invective and a perfectly rolled HOW dry rot 32. I now wreck with my invective and last extremity. My reflexes have to be pinpoint accurate to land a clean kill. My only complaint with snipers is the lack of any substantial aim deflection after taking fire. Last Extremity has max impact for SRs and still I get headshotted after unloading 5 bullets into the sniper.