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338 pills?

 
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  #22  
Old 06-11-2009, 10:01 PM
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Join Date: Dec 2008
Posts: 51
Re: 338 pills?

Dug up my targets and chrono data - ran it all through Loadbase. Very surprising!

Input data listed below, but the net is to get the drop numbers to match, I had to back the BC all the way down to 0.33. The advertised BC is 0.43. I will do more verification of this (including down range velocity measurements). Anyone else seeing this?

Here's my input data. Please verify if you have software (to make sure I'm running it right):

MV 2890 (measured with chrono)
Drop @ 300yds: 10.75"
ZH: 0.8" (measured from 100yd target)
Bullet Weight: 225gn

If you care, atmospheric numbers:
Station Pressure: 28.78
Temp: 66
RH 44%
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  #23  
Old 06-11-2009, 10:51 PM
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Join Date: Apr 2009
Posts: 183
Re: 338 pills?

Midway has them. I just got 100 of them and they look like a mini 300 gr smk should be fun to try in Daves edge and my lazz.
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  #24  
Old 06-12-2009, 01:00 AM
Platinum Member
 
Join Date: Nov 2008
Posts: 1,047
Re: 338 pills?

Quote:
Originally Posted by KY Gun Geek View Post
Dug up my targets and chrono data - ran it all through Loadbase. Very surprising!

Input data listed below, but the net is to get the drop numbers to match, I had to back the BC all the way down to 0.33. The advertised BC is 0.43. I will do more verification of this (including down range velocity measurements). Anyone else seeing this?

Here's my input data. Please verify if you have software (to make sure I'm running it right):

MV 2890 (measured with chrono)
Drop @ 300yds: 10.75"
ZH: 0.8" (measured from 100yd target)
Bullet Weight: 225gn

If you care, atmospheric numbers:
Station Pressure: 28.78
Temp: 66
RH 44%

Your numbers sound about right but I think you need more data.
The differance between a B.C. of .43 and .33 only makes about .75" at that range given your data. This small amount of differance could be due to shooting or Chronograph errors.

If you try that load at a much longer range, it will give you a far better idea of the true B.C. of the projectile.
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  #25  
Old 06-13-2009, 06:40 PM
Platinum Member
 
Join Date: Dec 2001
Location: Mukilteo, WA
Posts: 1,091
Re: 338 pills?

Many of the Interbonds are very underrated. I would put money on the 225 IB beating the 225 AB if measured in the same conditions.
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