I found Techeun Force (fusion rifle) in Last Wish which had both kill clip and rampage active at the same time but I think that one might be the only exception. As someone pointed out below those two perks are in the same slot.
I have it equipped on my Titan right now if you want to have a look.
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Edited by drscience9: 12/23/2018 6:47:04 PM<deleted>
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Noice