 Testing against Panther tanks at Kubinka showed the D-10T could penetrate the Panther's glacis up to 1500 m. Armor penetration performance increased further with the development of APDS (Armor-Piercing, Discarding Sabot) and other more modern ammunition types after WWII.A more effective high-explosive shell was also developed after the war, taking advantage of the larger 100 mm bore.It was originally designed to equip the SU-100 tank destroyer as the D-10S (for "samokhodnaya", 'self-propelled'), and was later mounted on the post-war T-54 main battle tank as the D-10T (for "tankovaya", 'tank' adj.