Link
Interesting that he carries lighter bullets than the typical 230 grain fodder. I have always found that my 1911s run well with 200 grain bullets.The basic functional difference between a full size (as John Browning designed it) 1911 pistol and a compact version with a 4.25” or shorter barrel is slide mass and speed. Basically anytime you reduce mass and propel it with the same energy you will get faster cycle speed. Why does this matter? The pistol needs a certain amount of time to eject a fired case, allow the magazine to lift, position the next round for proper feeding and chamber the round. When slide mass is reduced and therefore slide cycle speed increased there may not be time for this to all happen properly.