[45Gunner]

Squeezing a gun so tight that it makes you tremor or white knuckled is not really going to improve your marksmanship. You didn't mention what type of gun but assuming a pistol, your strong or shooting hand should be firmly wrapped around the front strap and the web of that hand should be high as possible into the beaver tail. Your support hand should wrap around the shooting hand and the heels of both hands should join up. The majority of pressure should be applied to the front strap and to the rear strap of the gun with the side panels having a slight to no pressure on them. That will control the arc of movement produced by the gun. Are you shooting with the dominant eye? Do you know how to determine which eye is dominant?

I'm not really a fan of using gloves to shoot unless one has particularly sweaty hands or your skin is so sensitive that the gun will beat it up.