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6MM Ballistics

 
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  #1  
Old 10-16-2003, 06:24 AM
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6MM Ballistics

It's a bit much to ask, but would someone run the numbers on a 107gr Sierra MK out to 1K at 3100fps. I was just curious of what the trajectory would be. The rangemaster said 53" at 200yds would put me on paper at 1K.
Thanks,
db
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Old 10-16-2003, 06:58 AM
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Re: 6MM Ballistics

Db,If it's a true 3100fps your come up will be approx 18 to 20 minutes from 100 to a 1000 yds,target is 2 minutes from centre X to target edge so this will get you on paper..Jr..Jeff Rogers
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Old 10-16-2003, 07:07 AM
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Re: 6MM Ballistics

Isn't it amazing that the answer can come so easily from halfway around the world? [img]images/icons/smile.gif[/img]
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Old 10-16-2003, 07:46 AM
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Re: 6MM Ballistics

dbhostler

With that bullet having a BC of .555 and with a speed of 3100 FPS, you will need 27.4 MOA to reach the 1000 yard mark.

If you set your scope so the bullets are printing 27 1/2" high at 100 yards, you will be on target at 1000 yards.

That's at 1000 feet elevation and 50 degree temps.

DC [img]images/icons/smile.gif[/img]

[ 10-16-2003: Message edited by: Darryl Cassel ]
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Old 10-18-2003, 01:00 AM
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Re: 6MM Ballistics

Jeff, Len, Darryl;

Thanks for your replies, I didn't have a chance to check where the rifle was printing with the scope at zero elevation, but my final up was 23.5 minutes. I'll have to print this at 100. It should be about 4" high, right Darryl?
How much above the line of sight would the bullet be at its higest trajectory?

db
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Old 10-21-2003, 10:17 AM
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Re: 6MM Ballistics

DB
Given a 1000 yard zero, higest trajectory will be at 557 yards with a height of 87.5 Inches, 15.01MOA.

I got 24.05 MOA as the approx come up to go from 100 yards to 1000 yards.

Rgds

700
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Old 10-21-2003, 10:38 AM
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Re: 6MM Ballistics

DB

I sent you the drops for 1100 yards for that bullet and velocity and not for 1000 yards..

I just went back to the Oehler program and got the correct info for you.

With a Velocity of 3100 and using the Sierra 107 Gr with a BC of .555 here is what you need for placing that bullet on target at 1000 yards.

You will need 23 MOA from a 100 yard zero.
That means if you click the scope so it is printing 23" high at 100 yards, you will be on target at 1000 yards.

At midrange the bullet at it's highest arc (bullet path from a 100 yard zero) is 241.14" above the line of sight.

Sorry I droped down to the 1100 yard info to come up with the 27 MOA I first posted.

Later
DC
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