In that case, load to top 50 Spl. loads when starting out. After your nerve endings in your hand and arm get toughened up and quit twitching with so much fun, then go to low-med 500L loads. Remember that John Taffin fractured the small bones in his hand with max 500 loads including the 475 Maximum. Now that's got to hurt. Hell, whenever I have an inattentive moment with my 475, I lose some skin in the process. It's just so much fun, NOT.