It is a fantasy that the "4" imparts some sort of extra effectiveness. The recoil is too sharp for little or no benefit over other calibers.
If I want to carry more cartridges, I go with 9x19 mm. If I want something larger, I choose 45 ACP. I go with hotter 44 Special if I want more power. I would go with 10 mm or 9x23 mm if I wanted more power in a semi-auto.
Last edited by tomrkba; January 27, 2013 at 07:48 PM.