Gor...
I think you marry someone because you love her and want her to be with you always and to be the mother of your children...not because she likes guns. People usually accomodate so you start picking up and doing dishes, she watches football games occasionally. You both go to date movies.
There are some very good posts here, thoughtful, reasonable, and likely to work. Usually when someone doesn't like guns, there is a reason. You find out by little questions, then
listening to the answers without response. When she understands that she can present her views (and maybe her fears) without criticism, she'll begin to tell you the real reasons. Usually, the stronger the aversion to guns, the deeper and more personal the reason is. Let her talk, just listen and repeat what she said so that she knows you heard her and understand. Sometimes that is all it takes.
In my opinion (at least with my wife), coming down hard (growing a pair et. al.) is not a solution with anyone. Whether stated or not, your wife will resent not being heard on the issue. Give it time.
My wife doesn't like guns very much, but says that I was grandfathered in so she'll accept them. I didn't like the grandfather part very much, but I carry when I feel like it, shoot when I want to, and she doesn't fuss much about it. It moved her a lot when my daughter (18) started shooting with me. She couldn't believe it. Now she's willing to go to the range sometime with my daughter and I. I just bought a Mossberg .22 for her to shoot when we go.
She would never absolutely forbid me to do anything...but it she did, we would have quiet conversations about it until we reached some accomodation.
Hang in there, listen, understand, and things will gradually improve.
-terry
BTW: Pax is so right on about these things that I'd marry her if I wasn't already happily married.