Be aware, that many types of ammo, like Fiocchi, AM Eagle, and any of the big 3's ammo, is .357 in name only...it is actually just hot .38.
The original spec for .357 was a 158 at 1,500 fps...out of a revolver. That is H-O-T.
You want something loaded on that scale, and w/a load like that, your rifle should have the same fps, at 100 yards, that a revolver does at the muzzle...according to the charts.
Get Corbon or Buffalo Bore, I don't know of any others hat are loaded that hot.
Here is info cut and pasted from the Hornady website, on Leverevelution ammo....on their 140
Test Barrel (8 V") Velocity (fps) / Energy (ft-lbs) Muzzle 50 100 1440/644 1274/504 1143/406 Rifle (18" Barrel) Velocity (fps) / Energy (ft-lbs) Muzzle 50 100 1850/1064 1632/828 1272/503
And the Corbon website.
357 Mag 180gr CORBON Hunter BCSP | COR®BON/Glaser Self Defense | Dakota Ammo
And the Buffalo Core website, you should note, that they CLAIM the same fps, w/a 180 as Hornady CLAIMS w/their 140 (1400 fps out of a pistol).
Heavy 357 Magnum Pistol & Handgun Ammunition