Yes, but Leftovers Empoleon with 252 Sp.Atk(this is a set that I'm currently testing) deals ONLY 52% when Multiscale is NOT active(I'm wondering how, however, because it should OHKO it at 99%) with Ice Beam. Meanwhile Dragonite is Dragon Dancing, and then he proceeds to sweep my entire team unless I have a Weavile.
252 SpA Modest Empoleon w/ Leftovers using Ice Beam on the standard LumDD Dragonite deals up to 67% damage with Multiscale intact. That same Dragonite, even Adamant 252 Atk at +1, fails to OHKO without Earthquake. The same Empoleon can also score up to 56% damage against the bulky DD variant, which also fails to OHKO at +1 without Earthquake.
EDIT: Oops, I forgot to edit in the IVs on the damage calculator. Ice Beam actually does up to 74% to LumDD and 62% to the bulky DD sets. Again, with Multiscale intact.