BM1,

Here is the data that you requested.

1. Hornady 115 gr XTP/8.4 grs WAP/1358 fps
2. Hornady 124 gr XTP/8.0 grs WAP/1303 fps
3. Hornady 124 gr FMJ/8.0 grs WAP/1290 fps
4. Remington 147 gr FMJ/6.9 grs WAP/1110 fps

These velocities were taken at ten feet from the muzzle with my 4.25 inch barreled Model 3566 using a Pact One chronograph. The above loading data is safe in my gun, but as always, start with lower charges and work up as you go.

Here are two chrono numbers for factory ammo.

1. Federal 147 gr FMJ Match - 1167 fps
2. Corbon 124 gr BHP - 1356 fps

Federal did load some .356 TSW with 135 gr Hydra-Shok JHP bullets at 9mm Luger velocity. I never was able to locate any of this load. Apparently it was a one time production run.

I also load the .357 Sig cartridge for my Sig P229. It and the .356 TSW are almost ballistic twins. The advantage of the .357 is that it is a lower pressure round. But it takes perhaps one third more powder to achieve the same level of performance. I had high hopes for the .356 when it was first introduced almost seventeen years ago. But when S&W disbanded their shooting team, that was the death knell for the round.


Roadster