There is a new manufacture of pcc buffer that is local to me that makes a specific buffer for steel challenge. The website is not up and running as of yet but will be less than a week apparently. Pace Setting Design is the company.
he shoots 1.8gn of ba10 with a 100gn bullet. shooting about 65-70 pf. He runs a taccom 5” barrel. The gun shoots incredibly soft, similar to my .22’s.
it shoots incredibly soft and I am having him build me one as we speak. Retail price is around $150.