Sorry guys, I been away a couple days. In answer to the questions:
1. I've read reviews that if you torque it on tight it will cause barrel stress & accuracy issues.
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2. That's what I've done, just shoot it with the threaded cap.
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3. JBO, I've just had a cheap 6.00 bird cage to try & it shot fine with it. My buddy is a 40 year machinist & has his own machine shop. He does work for Boeing & some other huge companies. He turned my barrel down in front of the GB from a varmint contour to a predator contour to shave off weight & he threaded it at that time. Yes sir, it's perfectly concentric to the bore.
It's very hard to tell, but I'm thinking one of the 3 prongs on the Vortex is bent either slightly in or out causing pressure on the bullet when it leaves the barrel. That's all my mind can think of. Thanks guys,
JD
