You may have come across this surfing through the airgun forums, Clark sent me some pictures of groups that were shot using one of his rifles.
I must say using the reamer rifling process that he experimented with has landed him some credibility and will assist him in selling his well made rifles to others.
I have updated the page I have on Clark’s experiments to show the accuracy. There is also a link toAirgun Rendezvous where the owner of the rifle posted his results and setup to see for yourself.
Go to Clark’s page:
http://airgundevelopment.com/custombuild/clark.html
More updates to come soon. I am looking at having someone else possibly machine the Concept 4 components as my time is very limited and I have not access to equipment presently.
Again, if you are building an air rifle and would like others to see, please email me and I will make a page all your own!
Thanks,
Pedro