I do own Taurus 856s. One is the stainless model and the other is a magnesium model.
Yes, no +P rounds for the magnesium model, but that problem was solved in part by making compromises that work.
In the magnesium model I use Federal standard pressure Nyclad 125gr. LSWCHP. Federal's load was re-introduced a few years back. It was, many moons ago,designed as a cheap practice round that kept lead fumes and particles non-existant when using this round.
Turns out that Nyclad turned out to be a nifty and excellent defense round as well. This was recorded by Chuck Karwan,Mas Ayoob,and Marshall&Sanow.
The round expands dynamically and gets good penetration.
The other compromise is to use 110gr. JHPs that are standard pressure. Even out of short barrels they do a good job under most situations.
For my stainless only 856 the Winchester or Remington 158gr. LSWCHP +Ps get the nod. Next comes the Speer Gold Dot +P 135gr. round. Any of these would be top picks. I like Corbon anything as well.
That and Buffalo Bore standard pressure 158gr. LSWCHP. It has the velocity of +P, but not the pressure or recoil of the +P version.
The other suggestion is to go to the Ruger SP-101 in .327 Federal magnum.
It carries 6 shots and with a 3 inch or 2 inch barrel gets excellent performance.
I own such a gun and with the 3 inch barrel. I want to get the most of the stubby barrel I can. Just a personal choice.
The other choice is to get a Rossi 461 or a 462. They hold 6 shots as well. Yes, it is a older design, but it works well. It has the hammer block instead of a transfer bar.
462's are cheaper than Tauri snubs.I own one of them,too.
I also own a Taurus 327 in .327 Federal as well, but that is a bit too lighweight for full bore .327 rounds. There are those who shoot them with the full house loads and don't mind it a bit.
I stuff mine with either 85gr. lower powered .327s or .32 H&R magnum rounds.
On occasion I shot the full power 100gr. Federal or 115gr. Speer rounds.
This is a six shot model as well.
Here's the scoop on the Taurus 856.
http://www.taurusarmed.net/forums/index.php?topic=36428.0
http://www.taurusarmed.net/forums/index.php?topic=36823.0
http://www.taurusarmed.net/forums/index.php?topic=35585.0
http://www.taurusarmed.net/forums/index.php?topic=13955.0
http://www.taurusarmed.net/forums/index.php?topic=28558.0
http://www.taurusarmed.net/forums/index.php?topic=24187.0
http://www.taurusarmed.net/forums/index.php?topic=9279.0
The scoop on the Taurus 617.
http://www.taurusarmed.net/forums/index.php?topic=36389.0
http://www.taurusarmed.net/forums/index.php?topic=31039.0
http://www.taurusarmed.net/forums/index.php?topic=37848.0
http://www.taurusarmed.net/forums/index.php?topic=36464.0
http://www.taurusarmed.net/forums/index.php?topic=36324.0
http://www.taurusarmed.net/forums/index.php?topic=37976.0
http://www.taurusarmed.net/forums/index.php?topic=38933.0
http://www.taurusarmed.net/forums/index.php?topic=36434.0
If you want the scoop on the 461/461 let me know.