Need better instructions - Concept Development Corporation Site-Lite SL-100 Mag Laser Boresighting System

My first use was on my 5.56 and it was not listed on the instructions. I did figure it out. A better listing on calibers and what would be needed to use system. They did recommend lube to insert in the bore, it is needed. If the only difference of the 100 to the 500 is the battery, the 100 is the best deal.