There was a thread on Wilson ammunition some time ago, and I seem to recall that there was a remark that they no longer had the Wilson headstamp. If I am incorrect, forgive my poor memory. At any rate, recent (today) correspondence with the firm confirms that their current offerings of ammunition all do have the Wilson Headstamp, with the brass made by Starline. Considering the loadings, there are a whole bunch of headstamps to get!
No, Vlad, that’s not the one. Thanks for looking for it though.