Tube and block came in late this afternoon and I hurried the assembly together so I could go out and test. The gas block appears to be a joint development between SLR and Wilson--I've never seen one of these before. I had a couple of jams with the cases failing to eject while trying to find the right setting--I opened it pretty far to get it to successfully eject, but as it turns out the cartridges I put together were likely too under-powered, they produced much less velocity than QL indicated they would.
Here's the very first group of cartridges fired (130 yds)--the 125 gr ballistic tips. I used 1 to get on target and these are the remaining 6. The ES and SD numbers were, in a word, terrible. I'm going to chalk that up to the cases not sealing well to the chamber and/or bullets since I made them from old fired 5.56 stuff. I'm actually surprised some of the shots were fairly close together, so I take that as a silver lining and it's going to get better from here.
Took a deep borescope look at the bore after firing--something unusual I've never seen in a bore before--unless my eyes are mistaken--the tooling marks from the reamer seem to cross cut at an angle to the wall of the rifling (something like 50-70 degrees as opposed to typical 90 degrees).
