Nope. Just to be sure I went back and checked my initial wording, and I can see why you thought I meant artillery. I should have specified that they are using their own domestically developed military equipment to strike targets within Russia, which could theoretically allow them plausible deniability to then use a couple of Western-supplied artillery, assuming they could do it in such a way that Russia wouldn't be able to tell if it was a drone, IED, or proper artillery.