Unique is too fast for full power loads,I've read on another website that H-110 is a flame-cutter,(is that true?) these are the powders I currently have on hand.

I am looking for a full power load shooting 125 HPs that won't be a flame cutter.Suggestions?

What model smith you have?
I like imr4227 158gr jacketed bullets

2400 works for me!

It's a 640 centenial,square butt.Bought it 2 yrs. ago hoping someday wis. would get concealed carry.Glad I have it.Fits real nice in the front pocket.

The load that I've been using for years is 8.5 grains of Unique topped with a 125 grain bullet. It's hotter than a .38+P and not as punishing in a small gun like a max-load .357.

I found herco to be of good use along with red dot.

The best I use was ALcan N0.7 great vel no flash but that was a while ago. I did pick up a 5lb can of it a a gun show. It real does IMHO make the best 357 125gr load.

15.2 gr. H110 with a Hornady 158 XTP FP or HP
CCI 550 primer

100's of rounds through my S&W 360-1, Vanadium/Titanium AirLite Sc. No problems.

I like Unique. 2400 leaves too much unburned powder. Use Unique and don't worry about a little velocity loss no more so than the loss for the short barrel--not gonna be using it at 1000 yds. Unique will be fine. Close range perps wont know the difference.

another vote for herco.
if you get the 2400 up into it's pressure zone with good neck tension and a good brisance primer it will burn clean.
anyways aa#9 will burn clean in lower pressure than 2400 will.

Try 7.0gr of W231 with your favorite 140 grainer.