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Real World BC berger .25?

 
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  #22  
Old 04-08-2011, 09:03 AM
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Join Date: Apr 2010
Location: Allen, TX
Posts: 2,608
Re: Real World BC berger .25?

Quote:
I've been shooting this bullets for several years so it's not like I went out once and these are the numbers I've come up with. .630 G1 BC works all the time, everytime for me.
Nitroused383,

If that works for you every time and you're happy with it, then you should carry on. But, it does't mean that .630 is the correct BC. (and, I don't think you made such claim)

It's almost certain that something is amiss in your software or inputs.

The important thing is that you're happy and successful within your own shooting discipline.

Meanwhile, I'll keep dreaming of a .630 BC bullet that will shoot well in my 25-06.

With a slow twist, mine really favors 75-90 grainers. But, it gets they job done.

-- richard
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  #23  
Old 04-08-2011, 09:12 AM
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Join Date: Feb 2005
Location: USA
Posts: 2,598
Re: Real World BC berger .25?

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Originally Posted by Nape.270 View Post
I just looked at my ituch to see what I settled on.

Program-bullet flit

MV-3306

Zero-22Oyards

G7 BC-.326 first BC
G7 BC-.240 2800fps second BC

I have shot from 200yards to 1100yards using those numbers. If you haven't shot these bullets around 3300fps and past 600yards than I dont know what to say.

This is real world from my gun.

I understand that my first BC is hard to beleve.


Why would you use 2 different BC's for the G-7 drag?
__________________
range it,check the wind, dial in correction, aim and only one shot
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  #24  
Old 04-08-2011, 10:41 PM
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Join Date: Nov 2009
Posts: 35
Re: Real World BC berger .25?

I have 26" 1-10 twist Shilen Select match barrel. I use Lapua 30-06 brass. The elite 4200 has very accurate clicks, ask Jerry Tao, he shoots out to 2 miles. BillR what is your email address I can email you all my load info as I keep very good notes, Retumbo didn't work that great for me. How many of you guys have actually shot these bullets long range at high velocity (3300+) ? I've used both a G7 and G1 bc and really the G1 works better for me.


I dial up 14 MOA with a 200 yard 0 for 900 yards. 500 yards I dial up about 4.8-5 MOA. Like I've said earlier I have zero'd my gun at 200 yards, made no scope adjustments, shot a tall piece of card board at 500 yards. I measured the actual bullet drop and well I'm not even going to say what it actually dropped because no computer calculation or book can make sense of it. Oh and a 25-06 shooting a 115gr bullet @ 3400 fps with RL-17 isn't a good idea. I do agree something must be off in my calculations but I have checked JBM so many different times and come up with the same thing. Hopefully when the weather is nicer my buddy will let me shoot through his chronograph @ 500 or 600 yards and I will set mine @ the muzzle to calculate bc based off of velocity loss.
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