I do not understand the statement that says the Type 99 7.7mm rifle could chamber and fire the 303 Britishicon round . ?? The 303 is a rimmed case with a .525 dia rim that will not even fit the .472 bolt face of the rimless 7.7x58 mm bolt , nor will it fit the chamber . Also my statement was about the US 30/06 being fired in the 7.7mm Type 99 rifle .