I would appreciate it if someone could give me a basic education in recoil. I wish to understand how the recoil of a particular pistol would respond to small changes in bullet weight, muzzle velocity, barrel length, recoil spring or grip. A basic understanding of the why would help it to sink in, but the basic what is more important. Also, I was under the impression that muzzle flip was primarily caused by restricting the rearward recoil of the gun at a point below the center of mass. Many of the posts here suggest that certain calibers inherently have greater muzzle flip than others. Have I been delusional my whole life? Finally, again from reading posts, if two different calibers/loads produce the same internal pressure, does that necessarily mean the recoil will be the same? To quote Denzel Washington in Philadelphia, "Explain this to me like I'm a 6 year old".