This is a fascinating comparision, glad i stumbled upon it
Just to clarify though;
1. "Bolt Face Opening" is the Cartridge Base Seat?
2. Lug Depth Left & Right. Is this as they face us in the picture or as they travel into the Front Trunnion?
They appear in the picture that the Left locking lugs are the Thicker ones.
The only other thing missing was AK Bolts in 5.56 and 5.45 and all bolts would be "compared"
Edit to add links to "ALL AK BOLTS" Comparison...I Forgot about that one;