I picked up one of these little Smiths a few years ago and wanted some factory ammo to add to the collectors value of the "set". This ammo is harder to find than the pistols, I'm ashame to say what I ended up paying for an unopened box. I'm pretty sure you can use 32 auto brass as a base to make up custom loads. As I under stand the S&W 35 wasn't loaded quite as hot as the 32 ACP although I've read where some people shoot that round in 1913 pistol. Hope this is a little help.
Timber