You guys all know I'm a Stoner platform guy, but I'm looking at the roller lock platform a lot lately and wondering about a lot of the details involved. So last night I was thinking about how critical bolt gap appears to be to the operation of the platform and how narrow the tolerance is and then started wondering how on earth a person can get within thousandths of an inch with a hydraulic press pushing the barrel into the trunnion. Can anyone explain to me how the barrel installation process works step by step in order to hit the proper bolt gap? Tried searching but I'm obviously not asking the question correctly because about the most useful piece of information I found was "Use a 12 ton press"