ORIGINAL: Ruger-Redhawk

If I were you I would go with the Browning BAR. They are proven. I can'tcommentabout the Remington 7500 you mentioned.I don't follow Remington and that's a new model to me. I know the Remington 742's left allot to be desired for reliability.I had a couple of them over the years and they are both gone now.Yeah if it were my money I'd put it on a Browning and leave the Remington alone.I have no experience with the Winchester,hopefully someone here does.
Good luck.