Having the same problem
Obewannabe,
I am having the same vertical stringing problem with my 460 S&W, 24 inch MGM barrel with heavy profile, removable brake, and Nikon Inline scope. I can barely keep it on paper at 100 yards. I already discovered that beefy rings are required, as my Burris Signature Zee rings cracked at the dovetail clamp. I replaced them and I am still varying wildly vertically, but holding tight horizontally. I tried IMR4227, Lil Gun, and H110 powder with similar results. I am thinking that my scope may have been damaged by the recoil. My next steps are to try factory ammo, change scopes, and remove the brake, to isolate the problem to gun, scope, or ammo.
Did you ever find the root cause to your problem?
Any response from MGM?
Obewannabe,
I am having the same vertical stringing problem with my 460 S&W, 24 inch MGM barrel with heavy profile, removable brake, and Nikon Inline scope. I can barely keep it on paper at 100 yards. I already discovered that beefy rings are required, as my Burris Signature Zee rings cracked at the dovetail clamp. I replaced them and I am still varying wildly vertically, but holding tight horizontally. I tried IMR4227, Lil Gun, and H110 powder with similar results. I am thinking that my scope may have been damaged by the recoil. My next steps are to try factory ammo, change scopes, and remove the brake, to isolate the problem to gun, scope, or ammo.
Did you ever find the root cause to your problem?
Any response from MGM?
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