The .356 was a perplexing offering. Apparently, S&W released it as a gaming cartridge as an alternate for making major. I guess they assumed that Limited would be going to a 10 round limit, due to the recently introduced federal AWB. Also, they must of missed the part where .40 caliber or larger is required to make major in limited division. It's unfortunate they didn't try and market this as a new self defense round, as it was offered during the time where much of LE wanted "more" than 9x19. It could have offered the ballistics of .357 Sig or better, at the same time offering the same magazine capacity as 9mm, which almost always greater than .357 Sig / .40 Capacity in the same firearm.