Assertion: tank's range | /r/CapableOf | prove inadequate
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text: This weapon could penetrate 15 mm of perpendicular armour at 500 m range which proved inadequate against the newer uparmored German tank designs thus attempts were made in 1942 to re-arm the T-60 with the 37 mm ZIS-19 cannon but were abandoned due to the Soviet Union's shortage of 37 mm ammunition.