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I spent some time with the folks at Sierra Bullets (Robert). Long story short, of course we spoke at length about possible rifle/rings/mounts issues, but really settled on a couple of avenues of concerns to investigate. One is the rifle itself. According to them Featherweights are just plain finicky and it takes time to find rifle chow it likes. 3 shot groups make real sense with this type of hunting rifle. Let the barrel cool down between groups. Shoot some moderate H4350 loads with a good bullet that has been handcrafted with care and set the shoulder back .001 on brass that has been fired in that rifle. Use CCI large rifle primers; they are actually a little larger in diameter and have been known to offer a better seal when brass has become stretched or work hardened after a bunch of firings. We’ll see: what say you?
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