Complex sentence: This was to result in the PzGr.39/43 APCBC-HE projectile, which apart from the addition of much wider driving bands was otherwise identical to the older 10.2 kilogram PzGr.39-1 APCBC-HE projectile used by the 8.8 cm KwK36 and PaK43 guns.
Split into simpler sentences: This was to result in the PzGr.39/43 APCBC-HE projectile. Apart from the addition of much wider driving bands this new projectile was otherwise identical to the older 10.2 kilogram PzGr.39-1 APCBC-HE projectile used by the 8.8 cm KwK36 and PaK43 guns.