Other than what is currently offered by federal, what are some other comparable factory loads currently made?

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Aaron Terry

The only other thing really comparable in velocity and weight is the 357RM1 from Remington. Finding either of those loads these days is incredibly hard. The 125gr JHP in 357 Mag from Remington UMC is the same load though and can be found just without the nickle case that I insist on.

The Corbon 125gr loading is a little hotter and might be able to find them.

Dan, what does the nickel case do?

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Aaron Terry

The nickel case resists corrosion better than brass.
Brass corrodes very easily and when you carry ammo
around for anything serious it needs to stay clean.
Nickel cases also last longer when reloading.

Back in the day, most ammo was nickel cased and
had front and rear crimps.

I completely agree with you on the corrosion benefits of the nickel brass.

I do also find that the nickel brass 'bulge' less near the head than brass which is nice when resizing.
But the nickel does seem more brittle. I get more reloads per casing with brass and lose a fair amount of nickel to split case mouths. So, I use my nickeled brass for light target loads and brass for my .357 Magnum loads, which need a harder crimp.