Is it common to get misfires?
Very simple to find the problem.
Step 1. Trade in the Remington 597 for a Ruger 10/22.
Step 2. If you still have misfires, it is the ammo.
I was considering the 10/22 first. But when I went shopping, the store had a 597, and was out of the 10/22, with no real idea on a new shipment. Price was really not a factor about 20 dollars difference between the two.