For sale is one lot of two bags 22 caliber, white powerloads by Sellier and Bellot. Product designation part number: 12 x 35 Power Unit PC. They were bought in 2013 and stored on the a shelf in a dry, climate controlled environment. I was told with fair certainty that each bag is 10,000 rounds. Total weight is 38lbs including factory box which is 14"x9"x11".
Waltons Inc website price for powerloads used in captive bolt stunner guns for livestock are $149+ per 1,000.