Point shooting

[Kaleva]

4. Some info on that method

"One point shooting method, referred to as aimed point shooting, has been used and discussed since the early 19th century.[4] The method employs the use of the index finger along the side of the gun to aim the gun, and the middle finger is used to pull the trigger. Mention of the use of the middle finger can be found in books from the early 1800s up through the 20th century: 1804,[5] 1810,[6] 1816,[7] 1829[8] 1835,[4] 1885,[9] 1898,[10] 1900,[11][12] 1908,[13] 1912,[14] and in many other military manuals on the M1911.

The US Army's first instructional manual on the use of the Model 1911 pistol specifically mentions it, but in a cautionary way due to the design of the slide stop. The slide stop pin protrudes out from the right side of the pistol, and if depressed when the gun is fired, the M1911 can jam.

The trigger should be pulled with the forefinger. If the trigger is pulled with the second finger, the forefinger extending along the side of the receiver is apt to press against the projecting pin of the slide stop and cause a jam when the slide recoils.

Similar cautionary language is repeated in many other military manuals published from 1912 and up until the 1940s: 1915,[15] 1917,[16][17] 1918,[18][19] 1920,[20] 1921,[21][22] 1922,[23] 1926,[24] 1927,[25] 1929,[26] and 1941.[27]"

https://en.wikipedia.org/wiki/Point_shooting