If I tune a set a D'addario 10-46 strings too drop C will they be to loose? what is a good gauge for this tuning?
11s...i personally like heavery bottom/medieum to..11-56...
That won't be mind-bogglingly horrible, but I would definitely go heavier if you play tight-riffing metal. Try 11's, or perhaps a hybrid set that fades from 9/10/11 or so on top to something heavier on the bottom.
I play 10-52 on a Jackson DXMGT not loose at all, so the 10's would work but get a heavier gauge for your thickest string