While digging through my Panzer 3 file I came up with this.   D.T.D. Experimental Report A.T. No. 113 Parts I, II, and III Project No: A.3305 Trial No: X426 File Ref: 160/78/2 Report on Firing Trial against Pz.Kw. Mk II. Model J D.T.D. , No. 2221. Held at S. of E. Range. Shoeyburness, on 15th, 16th, 17th, 18th, and 23rd of February. 1943.   British seem to be more thorough, not just relying on notch tests.   Germans cut alloy content in mid 1942 so these tests should show flaws in armor, accordi