In the beginning, Savage made their own cartridges. In later years, Remington made them with the Savage headstamp. The Model 99 was chambered for larger cartridges, such as the Savage 22 HP, 250-3000, 300, and 303. Others were the 30-30, 32 Special, 32-40 and 38-55. I may be wrong about the last 3. I am not real familiar with the Model 99. Your cartridge is a hotter version of the standard 32-20 load. By WRA Co., the high velocity load was for the Model 1892 and other suitable rifles. Not for use in Model 1873 rifles or handguns. I would imagine that the same rule applies with the Savage version.