I've been away from GBO for a while, but have a neat new gun to write about. OTT offered a group deal on barrels for the 500 about a year ago. I ordered a 20" one to use on a rifle frame. I also contacted mountain molds and designed a 420 grain bullet with a large flat point. My intent was to duplicate 50-70 ballistics. The barrel looks great and shoots like it looks. The mold was ready in a week and arrived exactly as I wanted it. I intend to take at least one deer with it this year.