Comparison of Lightweight 5mm Bullets: Let-to-right: 30-grain LTB, 32-grain Hornady V-Max, and 32-grain Sierra BlitzKing. The latter has a significant BC advantage but it will not shoot well in the tested 1/12 twist barrel when launched at >4400 fps. Conversely, when launched from the 1/16 twist Pac-Nor barrel, accuracy was impressive even at >4650 fps muzzle velocity.

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A Dreary Day at the Cortez Rifle and Pistol Club Range: On this day we were testing 32-grain and 39-grain Sierra BK bullets in the 5/35 SMc fitted with a 1/12-twist barrel. Conditions were cold but the slight breeze, while making the low 40s F temperature a bit uncomfortable, was insufficient to cause any real difficulty with making groups. Nevertheless, while the 39-grain bullet showed fine accuracy, of ten loads tested with the 32-grain bullet (two propellants with five seating depths each), only one showed any hope – most produced patterns exceeding one inch.