What is the highest grain ammo used in 32 cal Iver Johnson?

The highest grain ammunition commonly used in .32 caliber Iver Johnson Firearms is typically the .32 S&W Long, which can be found in grain weights up to 98 grains. However, the original .32 S&W cartridge, which is often used in older Iver Johnson models, is generally loaded with bullets ranging from 80 to 98 grains. It's important to consult the specific firearm's manual for recommended ammunition to ensure safety and proper functioning.