I posted a likeness to this on another thread, but it fits here as well.
I pulled out all my .38 and .357 this evening and went pie plate hunting with my 640-1 Pro. This is the first time I've run everything in the safe through the 640. I stapled the plates to a board, nailed the board to a tree about chest high, set my bench +/- 25' away, and went through--two handed--in this order.
Remington .38, 130gr, metal clad -- what a nice round to shoot, my best group in the middle of the plate (point of aim)
Speer .38 +P, 135gr SBHP -- first one was low and away (me, I'm sure), the rest were center and a bit low
Speer Lawman .38 +P, 158gr TMJ -- second best group, center low
Remington Golden Saber .357, 125gr, Brass JHP -- nicest of the magnum rounds to shoot and a nice group a bit low
Barnes TAC-XPD .357, 125gr, TAC-XP HP, lead-free -- first one got away low, then 4 on the plate but very low, slightly left (after shooting the rest of the types I went back to this one, raised the nose slightly and put three groups of 5 pretty rapid fire near the center of the plate -- absolutely no problem with recovery time)
Federal .357, 158gr Hydra-Shok JHP -- low, center (I shot two more groups of 5 with similar results)
Winchester .357, 158gr, JHP -- same as the Federal
I got my 640 earlier this month. I put Karl Nills stocks on it (stolen from my M&P 340), and they make it feel like a K-frame. No problems with recoil or "the next shot" with any of this ammo.
I've had 19 and 66 2½" guns, and I like this 640 Pro better.