I am considering purchasing a 1920s vintage Winchester 1892 from an online auction as a restoration project, and have a couple of questions: The rifle is chambered for .25-20, and although the barrel is reported to be in decent condition, I am considering having it rebarreled to .32-20 because of the availability of ammo. I don't handload, and although I don't see this gun as a "regular" shooter, I would like to shoot it occasionally. So my questions are (1) does changing the caliber to .32-20 involver anything more than a new barrel(since .25-20 is just a necked down .32-20)? (2) Assuming the rifle is otherwise mechanically sound is the current commercial Cowboy Action .32-20WCF ammo safe to fire in this old action?