308 Winchester Brass being converted to 300 Savage

Have a vintage Savage 99 chambered in 300 Savage, easiest way to load ammo is to convert 308 Winchester brass to 300 Savage. Started with trimming the brass to 1.595" length, then chamfered the case mouths to clean it up, full length resized and the final formed length is 1.8635. Trim length needs to be between 1.861" and 1.871".