My only home protection gun is a S&W 357 2'' 5 shot revolver. I'm wanting to buy a high cap 9mm that will shoot at lease 15 rounds. The problem is my wife can't seem to rack the slide on the auto's. Is there away to make the spring for the slide not so strong and still fire? I'm in my 70's and my wife is much younger than me, and I was just thinking about her after I kick the bucket. I would just like to have more shots available for her if needed.