Back in the early 90's we bought a batch of Wilson barrels to build some custom rifles for our customers. Most of them were ok but a few had some glaring problems. A couple the bores did not run center through the barrel, others were obviously not straight when chucked in the lathe and a couple had grooves of uneven depth. It wouldn't surprise me at all if some of the early Rugers that used Wilson barrels suffered from some of the same probems.