In an old thread DocGKR shows a comparison of 6.8 SPC and 5.56 "fired through loaded AK mag at 3 meters." This appears to be a hard, revealing and relevant test. Has this test been applied to service pistol calibers?

Quote Originally Posted by DocGKR View Post
I am sure many of you have seen this picture, but it remains a vivid illustration of the advantages provided by 6.8 mm over 5.56 mm: