I've been hunting deer with the 357 magnum in both a revolver, and rifles for a long time, with quite a bit of success.
First off, I'd suggest you stay away from 125g bullets. The 125's in any configuration absolutely will not give you dependable performance at 357 velocities. The 125g HPs won't even penetrate a deers shoulder in most cases, much less reach the vitals. Even with a perfect behind the shoulder shot you take a very real chance of busting the bullet on a rib, and only wounding a deer.
On the 158g bullets, if you use a 158g HP in your revolver with maximum loads, you're still taking a chance on wounding a deer even with perfect placement. The only 158g HP that will give you a somewhat decent level of penetration is the Hornady XTP-HP. Even the 158g XTP-HPs will often fail to penetrate a deers shoulder, and reach the vitals if the range is too close, which with a revolver it should be.
I highly suggest you use a 158g SP in your deer loads. The 158g XTP-FPs will also give you pretty good performance out of a revolver, but the SPs are consistantly the best. I personally like the 158g Remington SPs, which are as good as it gets in the 357 magnum on deer from either a revolver or a rifle. My revolver load drives them just under 1400 fps, and my rifle load pushes that to around 1800 fps.
You're wanting 75 yards from your revolver but honestly, that's a bit far for a 357 magnum revolver in my opinion. With the right 158g SP load, I have no doubts that you could "kill" a deer at 150+ yards, but only because the bullet would penetrate enough to poke a hole through the vitals. There'd be no expansion, and without at least some, the 357 just doesn't work well on deer. I'd suggest you keep your ranges down to around 50, maybe 60 yards with your revolver.
I could probably write an article on the 357 magnum in a rifle, but you're asking about real world revolver capabilities. The 357 when fired through a rifle barrel is a lot more potent than when limited to revolver velocities.