SRT 11.5 CQB 5K Part 2

[@hairydogstail]

I don't watch Garand thumb much, so I must have missed the drama. Using a empty primed case, you can measure the before and after it is fired using a gauge.. I have never used a Tubbs action spring..So you are running a full length rifle action spring with a carbine buffer?? I just want to be clear about this..