7.62×17mm Type 64 pistol cartridge drawing


Type 64 pistol chamber drawingIMG_20190117_132510
Type 67 pistol chamber drawingIMG_20190117_132649
Type 77 pistol chamber drawingIMG_20190117_132719


Great information, thanks a lot.
Its a pity the Chinese have inserted a wrong drawing on the bottom left of the first picture. It should show the chamber at the cut line A-A but actually is an unrelated bore profile.
Because chamber grooves intended to slow down case movement (as in the first and last photo) are very rarely shown in detail, these drawings are really precious.

Magnum, thanks for this!

Do you happen to have images of a case fired in a Type 64 pistol?