I size a lot of once fired 5.56/7.62 and have used Imperial Sizing Wax with good results. Lubing inside the neck is difficult and tedious for large quantity. I have tried One Shot with decent results but it seems like I have to use a lot of it(aerosol). I tried some Case Slick and it works great. I like the spray pattern and it makes MG fired brass size like butter! More consistent results too.
I use an old Frito Lay box that the small bags come in(wide and shallow). turn it on its side and stack cases like firewood. Set upright, spray at an angle to get inside necks, spread them across the bottom of the box and a couple sprays while stirring them around and done.
Best method yet. Using a Redding SB die in both caliers with carbide expanders. No problems, no build up or dented necks. With the Imperial I tend to over lube and dent necks from my fear of stuck cases. The RCBS product is virtually dummy proof!
I use an old Frito Lay box that the small bags come in(wide and shallow). turn it on its side and stack cases like firewood. Set upright, spray at an angle to get inside necks, spread them across the bottom of the box and a couple sprays while stirring them around and done.
Best method yet. Using a Redding SB die in both caliers with carbide expanders. No problems, no build up or dented necks. With the Imperial I tend to over lube and dent necks from my fear of stuck cases. The RCBS product is virtually dummy proof!