Unless you have the "back in the day 357" what would it matter?? The velocities stated were done with real and test barrels of varying lengths so you can not compare apples to apples. I have cases of Super Vel 357 mag 125 gr JHP, they are "hot" compared to 38 spl, but I have not put them through a chronograph with various barrel lengths and compare it to any of today's "hot" ammo. The numbers that you give are just that, numbers. First chrono it in your gun, then shoot, water, gel, wet newspaper and it may give you very rough level of penetration, expansion. That said, the bullets available now offer greater performance at lower velocities so "hot" "high velocity" really mean nothing!! An example is 4 deer shot at same spot,same gun, 33 yds, broadside with 44 mag 240gr , all 4 ran- 40-95 yds. The ammo was fed hydroshock, winchester silvertip, IMI JHP, PMC Starfire, when dressing all were double lung, 2 also removed part of the heart, 1 tore pericadium, poor blood trails, all were recovered. 5 th year I switched to 240 xtp, distance, gun, position were the same, this deer shuddered, took 2 steps and fell over. Velocity/energy are just Numbers, they can be used as a guide, with proper placement most will work. As for the stated velocity I have seen higher reported, but not confirmed, barrel length was not given. Current hogdon data lists" 158 xtp, 16.7 gr of Win 296 MAX load), 10" barrel, vel-1591, 887.97 ft/lb. After hunting for 55 yrs with rifle, shotgun, handgun,muzzle loader, bow, I can tell you that none of the animals ( deer,bear,hog) read the vel/energy levels, it did not matter. Be Safe,