A few years back I too had a 1950's nickel DS with hammer shroud in 32 NP. I had chronographed 2 brands of ammo (one was remington) and they both gave about 700 FPS. As funny as it sounds, this ammo really felt more like a 22 LR. Lyman reloading manuals do offer much improved performance over that but I had not tried any of the S&B or other ammo offered. In the 1980's, someone was offering 32 H&R cylinders for the D frame Colt. I considered finding one or having my DS rechambered. I doubt the cylinder or gun would have an issue in the hotter chambering but I instead sold the gun for a profit and since have added 2 or 3 more D frame Colts in 38 Special. Simply as it sounds, one can always download a 38 special for recoil sensitive shooters (factory mid-range wadcutters are one example) but up-loading a 32 is not as easy. I do kind of wished I kept the gun as it would be useful as a ladies training gun and right now some wifes and daughters are coming to the range to shoot. The mental picture of loading tiny "bullets" would maybe help with new shooters.