The Magnum Rifle POWDER BAR may throw up to 92 grains of powder, depending on the type of powder. Nevertheless, if you know for sure you'll load 80+ grains of powder, I recommend buying the Belted Magnum POWDER MEASURE initially, instead of buying the XL Powder Die and the Magnum Rifle Powder Bar separately. (Then finding out later that you need the Belted Magnum Powder Measure.)