Revolver, sticky rounds in cyclinder after firing.

[Ready_fire_aim]

I load many calibers with Unique, but it is NOT a magnum powder.

Those are max / hot loads.
CylInder definitely needs a good scrubbing / cleaning.

Pulling a bullet and weighing the powder charge could be very telling. Hopefully, the powder is Unique. Dumping powder charge and reloading 5 gr, would give you good rounds to use.

Yup! I’d be curious to weigh the charge also. My basic target load is .5cc dipper/4.7gr unique under a 158gr SWCHP

 

[mr ed]

Spicy hot and case lengths may be a little long

 

[mouthpiece]

Just finished breaking them all down
Measured 2 @ 8.5 so yes over charged.
Looks like Unique

 

[Ready_fire_aim]

This whole thing reminds me of a time when I bought a .38 revolver that came with some handloads from the sellers neighbor lol…. Being the the brave idiot that I am I shot all 50. lol… at least I wore thick leather gloves and large safety glasses while doing so

Yeah over 8gr is way too much unique. And yes that definitely looks like unique

 

[dennishoddy]

This whole thing reminds me of a time when I bought a .38 revolver that came with some handloads from the sellers neighbor lol…. Being the the brave idiot that I am I shot all 50. lol… at least I wore thick leather gloves and large safety glasses while doing so

Yeah over 8gr is way too much unique. And yes that definitely looks like unique

Agree. Way too much Unique for that round.

 

[turkeyrun]

8.5 gr in a .357 is like putting Oprah in yoga pants. It might fit, but who wants to trust the ending?

 

[Buzzdraw]

Powder cannot be definitively identified by simply viewing its appearance. My advice, from over 45 years of reloading, is to NOT shoot anymore of these (or any other, for that matter, unidentified rounds). Your gun and perhaps your body parts will appreciate this caution.

Pull the cartridges down, saving the bullet and primed case. Discard the powder in your yard.

 

[Snattlerake]

Hmmmm. One pretty well placed center hit, one slightly off from the firing pin and one waaaay off of center.

Are the chamber bores not concentric with the cylinder?

What gun is it?

 

[Okie4570]

Powder cannot be definitively identified by simply viewing its appearance. My advice, from over 45 years of reloading, is to NOT shoot anymore of these (or any other, for that matter, unidentified rounds). Your gun and perhaps your body parts will appreciate this caution.

Pull the cartridges down, saving the bullet and primed case. Discard the powder in your yard.

See post #23.

 

[Buzzdraw]

See post #23.

I saw #23. My advice remains the same. In this particular case, thankfully the OP tore down the ammo before running out of luck and blowing up a gun.