Winchester introduced the Big Bore 94's in the 80's. Three calibres were made....307 Win, 356 Win and 375 Win. They are great rifles to say the least. Well built and extremely strong. They featured angle eject so a scope could be mounted centred over the receiver as opposed to side mounted on the old top eject models. I used to own the .356 version. I bought it new in 1987. It was supposed to be as close to a 358 Win as you could get in a rimmed cartridge. Likewise the 307 was supposed to do the same as it's cousin the 308 Win and the 375 was to be ballistically the same as the 38-55 and if memory serves the 375 cartridge could be fired in a 38-55 rifle and vice-versa but I could be wrong? The biggest issue with them now is sourcing factory ammunition. If you can find some it may cost you whatever the buyer wants for it as it's nearly impossible to find. I happened to get a bunch a few weeks ago from a home hardware in a small town. They were discontinuing their ammo license and were clearing it out at their cost. It had been on the shelves almost 25 years so I bought it at prices from 25 years ago. Most of that ammo today is upwards of $64/box at last production time!! I would keep the rifle if I were you, enjoy it and keep the brass to reload. My 356 had the same set up with a Bushnell Scopechief VI in 1.5-4.5X. It was a nice bush rifle. Short to carry, a bit heavy but not uncomftorable at all. Use it and enjoy it.