Hi, I have a question about speer plastic bullets. I purchased 38 cal plastic bullets from Midway, these bullets have a hole in one end and the other end is solid. Which end goes in the case? Also can a small pistol primer be used in the plastic case or must you use a large pistol primer? I am new to using these plastic bullets but I do reload 38 special 40 cal. Any help you can offer me is appreciated. 
Thank You

Thank You