With just a very slight correction I think that there was 85 of them produced (like a said not a great difference)
http://www.achtungpanzer.com/pz12.htm
"In the Summer of 1945, US Army tested captured Jagdtiger, which was able to penetrate frontal armor plate of M26 General Pershing at 2100 meters"
While I do agree this was nowhere near the norm, though with the severe amount of engagements and shells fired throughout the war, Im not too suprised about some of the things from the very reputable Achtung Panzer website
http://www.achtungpanzer.com/panzerj...sd-kfz-164.htm
"It is reported that in early March of 1945, Lieutenant Beckmann from sPzJagAbt 88 destroyed Soviet IS-2 at the range of 4600 meters near Marzdorf."
"Some Nashorn crews reported that they were able to knock out Soviet T-34 tanks at distance as great as 4000 meters. Nashorn crews also reported numerous kills of KV and IS-2 tanks as well as SU-152, ISU-122 and ISU-152 assault guns."
I highly recomend the Achtung Panzer website for its critically researched website, and their forum if you wish to discuss anything about ww2 tanks.