Hmmm. I have a 500mm superlight superior setup like this, but have not had enough time with it to say on the poi subject. I also have a 500mm St (liner-less barrel) which of course does not have this issue. But I always take the 380mm stx pellet a hunting, and I've seen it over and over. If I ever left the barrel on the gun it would settle in. I've gotten it to before. Maybe because I'm always swapping barrels that's the issue.... Sounds like I should put a sleeve in the short barrel, though it has always shot phenomenal without *when zeroed*
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