no
you can DYI with a chamber reamer on any S&W 357 or Ruger except the S&W 19
and Lee sells dies 357 mag & maximum for $19 & Ship from Titanreloading.com
I have a set.
checkout this 6min video. on my 586-8
https://m.youtube.com/watch?v=oW1PKusWl8I
Steve who did vid. is tech. at Brownells & you could prob. call & speak about chamber reaming to 357 max with Ruger or S&W.
He mentions in the video that the cylinder of 586-8 is longer & can handle long keith style casts. He also talks about 9mm clips too.
I have Ruger redhawk hunter in 44 mag. & have had one in 41 mag. Don't know if you can do 357 redhawk. but probably.
my question is why 357 max?
I have three S&W revolvers 41mag, 357 mag & 500 S&W. So I can reload various power levels to get almost any result. I would not bother to go 357 max.
if you do.... With some research & a little money you could rechamber to 357 max cause guys use chamber reamers to true out all six cylinders all the time.
It's not a standard custom shop option but I'm sure Magnum Research could build you a .357 max BFR... for a price. I know there's been at least one chambered in .350 Legend and that is not a standard custom option either.
No. Caliber has law of diminished returns In revolvers. Adaptable to contender or rifle actions but erosion is costly factor.
A .300 blackout revolver??? I wonder if the barrel is threaded.
I had a Dan Wesson Supermag in 357 maximum, should never have let it go.
It was the loudest handgun I’ve ever shot indoors, louder than the BFR in .30 carbine...
Maybe! They seem open in their custom shop. I wonder how the cylinder gap would interfere.