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Accubond BC(actual) .338 225g

 
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  #1  
Old 08-01-2013, 09:02 PM
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Join Date: Dec 2012
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Accubond BC(actual) .338 225g

Hello all,
Working with a Browning Abolt 338 Win Mag. Have been working loads with 250Berger Elite Hunter, 225 Cutting Edge, and 225 grain Accubonds(recently added). Bergers and Cutting Edge shoot a few tight & then throw fliers 4-5" at 300yds. I'm going to leave those alone until winter as I have a Utah Beaver unit tag for Sept 14th. I have yet to figure out my problem with those bullets but it may be neck trimming?? Nut behind the trigger??
Anyway, recently added Accubonds since i have used them in factory loads with good luck at closer range. Loaded them at 68-69.5 grains touching the lands and they are tight at 68 grains, under .75MOA, opened up & then tightened up again at 69.5.
My question is, has anyone come up with a realistic BC for them? I will chronograph soon but my initial impression at 300 yds is that the BC is over estimated.
Thanks in advance for any help
Shaun
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  #2  
Old 08-01-2013, 10:03 PM
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Re: Accubond BC(actual) .338 225g

I shoot the 225 AB in my 338rum and drops out to 1000 yards pretty much match listed bc.
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Old 08-02-2013, 05:46 AM
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Re: Accubond BC(actual) .338 225g

G1 BC 0.48 should get you close. If you swap over to the 225gn Hornady Interbond you can use a G1 BC of 0.53 with confidence.
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  #4  
Old 08-02-2013, 05:55 AM
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Re: Accubond BC(actual) .338 225g

I also wondered about the actual BC of the 225 accubond. I did an average of Brian Litz's BC of other accubonds which is lower than Nosler's. Generally I tweak the BC by multiplying Nosler's BC by .91

I am using G7 BC of .254

I have used this value and the comeups are correct out to 500 M. I have never needed the turrets as the two elk I killed from my 338 RCM (vel 2750) were both under 150 yds. This bullet works very well on cow elk. Both bullets exited.
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  #5  
Old 08-02-2013, 08:26 AM
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Re: Accubond BC(actual) .338 225g

Thanks for all the replies. Off to the range this weekend with that info, I'll post up what I end up with.
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  #6  
Old 08-02-2013, 04:37 PM
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Join Date: Feb 2008
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Re: Accubond BC(actual) .338 225g

Quote:
Originally Posted by 375fan View Post
I shoot the 225 AB in my 338rum and drops out to 1000 yards pretty much match listed bc.
Same here!
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