More on enhancing grip strength
The next exercise helps develop hand strength for shooting: Using the same coil spring hand grip, turn it upside down in the shape of a V. Grip one handle like it's a pistol grip. Use your trigger finger to pull back the other handle just like it was a trigger. Do this 10-12 times. This exercise really helps develop the muscles in your hand needed for trigger control without using the large muscles which can throw off your sight alignment and accuracy.