Not always "one hole" but the most surprising is a LH Kimber of Oregon Model 84 in .223 purchased back in 1985 IIRC.
The bolt has always been stiff to operate, even after sending it back long ago to get a new extractor. Redneck here reports that it has something like .015" excess headspace. Further, it is a lightweight rifle with a very round forend not conducive to benchrest shooting. It has well over 4000 rounds down the tube, I stopped counting years ago.
But it will still group three or five shots into some of the tiniest groups I've attained on a regular basis. The only other rifle I've owned which shoots anywhere near as good is a heavy barrelled Model 700 VS. This Kimber handily outshoots my Tikka T3 .223.
Just can't explain it except that it must have an exceptional barrel.
