In the last two years the company I work for has purchased a fantastic system for shot loading. No more bags, no more sore backs or injuries, and an exceptionally clean floor area. We never have the worry of wether our machinery has enough shot in it and we don't have to rely on people to do the work, its all automatic. We just purchased our second system and it is a god send. If anyone wants information on this call Industrial Metal Fabricators (I.M.F.) in Chatham Ont. They did a great job for us with this new technology and we now have the ability to reuse our seived shot in our cleaner for a huge $$$$$$ savings. I.M.F's number is 519 354 4270 ask for Alan or Frank. Good luck.