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300 win mag and 215 grain bergers

 
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  #8  
Old 05-01-2013, 09:15 PM
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Location: shoshone, Idaho
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Re: 300 win mag and 215 grain bergers

Well loaded four sets of three to try today started .040 off the lands last three shot group was with 77 grains of h1000 no pressure signs yet and shot great clover leafed at a 100 yards. 77 graind was the hottest i tried they seemed to shoot better the hotter they were loaded. Here is the only thing i don't like my es was 51 fps for the three av ended up being 2841 which im happy with just need to get the es down a little. Part of it could have been fire forming brand new norma brass. I think ill load some at 77 in fire formed brass and see what happens. Might try some at 77.2 and 77.5 to see what happens. Any thoughts on getting the es down? This is out of a factory sendero tube.
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  #9  
Old 05-01-2013, 09:21 PM
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Re: 300 win mag and 215 grain bergers

What primer?

What Chronograph?

How far was the chronograph from the muzzle?

Jeff
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  #10  
Old 05-01-2013, 09:30 PM
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Re: 300 win mag and 215 grain bergers

shooting chrony beta master, federal 215m, and chrony was 10 feet from muzzle.
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  #11  
Old 05-01-2013, 10:37 PM
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Re: 300 win mag and 215 grain bergers

Quote:
Originally Posted by bobcat trapper View Post
shooting chrony beta master, federal 215m, and chrony was 10 feet from muzzle.
Move the chrono out to at least 18' and shoot again. Also, a group of 5, allowing cool time between shots, at 800 yards would give you a more accurate evaluation of ES by measuring verticle than a Chrony.

Just food for thought. That load you are shooting I have used in Sendero's before with no issues. Just making sure it was not bad info from the chrony.

Jeff
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Old 05-02-2013, 02:47 AM
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Re: 300 win mag and 215 grain bergers

Quote:
Originally Posted by Broz View Post
Move the chrono out to at least 18' and shoot again. Also, a group of 5, allowing cool time between shots, at 800 yards would give you a more accurate evaluation of ES by measuring verticle than a Chrony.

Just food for thought. That load you are shooting I have used in Sendero's before with no issues. Just making sure it was not bad info from the chrony.

Jeff
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