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X bolt issue

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/16/2013 at 20:24
SChunter View Drop Down
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So I buy my wife a micro x bolt in 7mm 08. Nikon bdc mounted.   First shot off bags 8 inches high. Adjusted down now two inches low but off left   Next shot high again. Checked and removed and remounted rings to spec. Checked bedding and screw tightness. Shot again off bags. Same thing--all over the place. My only other thought is switching ammo. Hornady superformance isn't working. Suggestions?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/16/2013 at 21:32
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Had the same problem with 139 grain Hornady Superformance ammo in a 7MM-08 A-Bolt. Couldn't muster anything under a 5" group even with ample cooling time between shots fired off a Lead Sled. Tried 140 grain Federal Nosler Ballistic Tips and 140 grain Federal Fusion. Both shot well (at least for me), 1" and less for the BTs and a hair over 1" for the Fusions.  Also tried 140 Remington PSP-CLs. Much better than Horns, but did not perform as well as the Feds. Could be off base on this, but my hunch is the Horns may have been a little too hot for my particular rifle.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/17/2013 at 10:34
SChunter View Drop Down
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I am hoping that is the problem...

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/17/2013 at 10:36
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I have sure read a lot more bad about super performance than good. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/17/2013 at 10:39
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It could be due to any number of different things, and it's impossible for us to know the culprit without seeing the rifle and working through one variable at a time. First, try different loads. If you handload, go through the process of working up a load for the rifle. Different rifles shoot best with some loads and hate others. If you can't get any load to shoot, try a different scope; your scope may be unable to maintain zero. Check to make sure the barrel isn't binding against the stock anywhere along the barrel channel. Eliminate only one variable at a time; otherwise, you can't isolate the true source of the problem.

There's always a chance you just have a bad barrel. Rifling buttons and hammer forging mandrels wear over time, and if yours was made toward the end of the tooling life, you may have a bum tube. Check the muzzle crown to make sure it's clean with no dings at the muzzle. All factory rifle manufacturers turn out a lemon from time to time. It's the nature of the beast with mass-produced products. If all else fails, send it back to Browning.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/17/2013 at 13:28
SChunter View Drop Down
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Thanks Ted.  I first inspected the barrel.  All appears free of nicks and dings and rifling appears good.  the barrel is not binding--in fact, I am fairly impressed with bedding from the factory.  Working on different loads.  If that doesn't work I am switching the scope.  Will let you know...

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/05/2013 at 11:03
SChunter View Drop Down
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so after much delay, nosler partitions were one minute of angle.  Much improved!! Was worried I would be sending rifle to Ogden, Utah.  Now let's see if the better two thirds can get a deer with it!

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