I'll agree with Goodshot. I own a SP-101 and have had the same experinces.
The ammo can be found though.
Able's Federal .327 Federal Mag D/H 100 Federal American Eagle Ammunition AE327, 327 Federal Mag, Soft Point, 100 GR, 1400 fps, 50 Rd/bx (price per box for orders of 10+ boxes) $24.17 50 $0.48
Able's Federal .327 Federal Mag D/H 100 Federal American Eagle Ammunition AE327, 327 Federal Mag, Soft Point, 100 GR, 1400 fps, 50 Rd/bx $25.44 50 $0.51
Cabela's Federal .327 Federal Mag D/H 100 Federal American Eagle Pistol Ammo - Per 50 .327 FedMag, Weight:100, Type:SP $25.99 50 $0.52
Able's CCI/Speer .327 Federal Mag D/H 115 Speer Gold Dot Handgun Ammunition 23914, 327 Federal, Gold Dot Hollow Point, 115 GR, 1300 fps, 25 Rd/bx (price per box for orders of 10+ boxes) $18.71 25 $0.75
Able's CCI/Speer .327 Federal Mag D/H 115 Speer Gold Dot Handgun Ammunition 23914, 327 Federal, Gold Dot Hollow Point, 115 GR, 1300 fps, 25 Rd/bx $19.69 25 $0.79
Ammunition To Go CCI/Speer .327 Federal Mag D/H 115 20rds 327 Federal Magnum Speer 115gr Gold Dot Hollow Point Ammo $19.95 20 $1.00
Cabela's Federal .327 Federal Mag D/H 85 Federal Premium Hydra-Shok Handgun Ammo Per 20 .327 FED MAG, Weight:85, Type:JHP $19.99 20 $1.00
Midway USA CCI/Speer .327 Federal Mag D/H 115 Speer Gold Dot Ammunition 327 Federal Magnum 115 Grain Jacketed Hollow Point Box of 20 $20.99 20 $1.05
Cabela's CCI/Speer .327 Federal Mag D/H 115 Speer Gold Dot® Pistol Ammo .327 Federal Magnum, Weight:115, Type:GD $21.99 20 $1.10
The Ammo Bank Federal .327 Federal Mag D/H 85 FEDERAL Premium, FED .327 FEDERAL MAGNUM PREM HYDRA-SHOK-JHP PERSONAL DEFENSE, 20 count, 85gr
That's from
www.ammoseek.com by itself.