An Interesting Design Concept
THE ARTICLE ON THE NEXUS RIFLE IN THE NOVEMBER 2022 ISSUE ASSERTS that the headspace is set by the barrel extension and the bolthead. Headspace is measured from the front of the locked bolt to a datum point on the steep taper to the neck of the cartridge. This requires the entire chamber, at least up to the neck, to be formed in the barrel extension. I assume the barrel extension is the copper-colored part at the left end of the barrels in the top picture on page 44. This is an interesting design concept that I do not recall seeing in any other design. James Beasom Melbourne Village, FL Hats Off to Ruger! I recently purchased two Ruger Single-Six revolvers in .22 LR/.22 WMR. One shot perfectly. The other was significantly off at…