I would go with Starline brass for .32 H&R +P loads.You weren't asking me and I need to verify my notes but I'm almost positive my favorite .32 mag load for my LCR is 3.5 gr of Titegroup and a 100 gr LSWC.
I recall that giving me about 950 fps. But I need to look it up and edit my post tomorrow. It may be over pressure in a .32 magnum but it's no stress in a .327 Fed chamber.
The LCR smacks primers well so I can use CCI or whatever I want.
I would like some .327 Fed brass because as you can tell by the numbers even a .32 magnum +p+ is at best slightly ahead of .380 acp. A full-power .327 load can do 9x19 things.
Cartridges become less popular and "dead" is over-used but I have to say, when you can't find .327 even using an ammo search engine, nor is anyone making BRASS for it...it's probably safe to announce the demise of the cartridge.
Awhile back I emailed Starline's ballistician, Hunter, asking how stout their .32 H&R brass was? I was told: "If you you can find loads, +P or otherwise, published in reputable magazines. e.g., Handloader, our brass is well capable of handling it."