Quite Trying so hard and be real nice to her.
Lay off all the shooting talk and do what you used to do.
Don't leave your shooting stuff around and make a mess.
Be more responsible, clean up around the house, and be more self discplined. Talk about things that interest her. Make her life easier. Don't spend to much on guns. Don't spend too much time away from her on the hobby.
Don't fight as much or get angry with her. Don't sweat the small stuff. Work on emotional maturity. Take things easier. Don't argue in an uncontrolled immature fashion or you might not have a gun. Let the gun thing slide if she doesn't want to use a gun or shoot, improve your physical security around the house discreetly, make sure her vehicle is reliable and get her a Cell Phone. Maybe get a dog when the kids a bigger. Don't give her another chore, take care of hte dog yourself.
Be an ideal husband and father. Show her you are the height of responsiblity. Don't babble about needing a gun all the time. Let her spend time on her hobbies. Take the kids out and give her a break.
Be a MAN with a gun not a man that needs a GUN.