Armybrat -- that 100 gr. Federal AE is the hottest loading I have tried in my 327's -- I currently shoot .327 in 4 pistols and a rifle. The 100 gr. AE is rated at 500 ft/lb, and the 85 gr. AE is rated at 400 ft/lb. I find that the 85's are much more comfortable to shoot in my handguns. In my Henry it is not an issue. The 100 AE jams up my original 3 inch SP101, but the 85 AE and .32 H&R Magnums run fine and are fun to shoot. YMMV. I hope you enjoy your new SP101 !!
FYI, you can shoot other rimmed .32 ammo in .327 revolvers, like H&R Mag, 32 S&W -- the semi rimmed .32 ACP will fit, but it will not extract very well and can suffer from light strikes (in my experience).