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6.5/.284 bullet drop

 
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  #1  
Old 07-28-2005, 08:47 AM
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6.5/.284 bullet drop

I just built a 6.5/284 and am wanting to shoot 500 yards for the first time.using a 139 gr. lapua at 2800-2850 in a 26 inch barrel.how many clicks on my 8.5x25x50mm leupold should it take in elevation to get me close at 500 yards. 1/8 inch clicks with a 2" high zero at 100? thanks timbo
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  #2  
Old 07-28-2005, 09:18 AM
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Location: Central PA
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Re: 6.5/.284 bullet drop

[ QUOTE ]
I just built a 6.5/284 and am wanting to shoot 500 yards for the first time.using a 139 gr. lapua at 2800-2850 in a 26 inch barrel.how many clicks on my 8.5x25x50mm leupold should it take in elevation to get me close at 500 yards. 1/8 inch clicks with a 2" high zero at 100? thanks timbo

[/ QUOTE ]

I bet they are 1/4moa clicks [img]/ubbthreads/images/graemlins/wink.gif[/img]

6moa above your current 2"high at 100 ought to put you on paper at 500yds. that is 24 1/4moa and 48 1/8moa clicks.

JB
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  #3  
Old 07-28-2005, 09:23 AM
daveosok
 
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Re: 6.5/.284 bullet drop

Range Velocity Energy Drop
(yards) (ft/sec) (ft-lbs) (inches)
100 2741.7 2319.9 2
125 2720.2 2283.6 2.2
150 2698.7 2247.7 2
175 2677.2 2212 1.6
200 2655.7 2176.6 0.9
225 2634.2 2141.6 -0.2
250 2612.7 2106.8 -1.5
275 2591.3 2072.4 -3.2
300 2569.9 2038.3 -5.2
325 2548.5 2004.4 -7.5
350 2527.1 1970.9 -10.2
375 2505.7 1937.8 -13.2
400 2484.4 1904.9 -16.5
425 2463.1 1872.3 -20.2
450 2441.8 1840.1 -24.3
475 2420.5 1808.2 -28.7
500 2399.3 1776.6 -33.5<--inches 35.0745<---MOA

1/8 moa scope clicks 1 click
100 0.130875
200 0.26175
300 0.392625
400 0.5235
500 0.654375

Number of clicks----------------53.6,


100 1 moa 1.047
200 1 moa 2.094
300 1 moa 3.141
400 1 moa 4.188
500 1 moa 5.235

This data was obtain using JBM
and a B.C. of .585. I think it will get you close but as always nothing beats in field testing.
I am sure someone else will come along and have different data. As far as the math goes I think its correct but pelase if it isnt then step in and correct me.
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  #4  
Old 07-28-2005, 09:46 AM
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Re: 6.5/.284 bullet drop

jb and dave, thanks for the info and your right they are 1/4 inch clicks thanks timbo
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  #5  
Old 07-28-2005, 10:13 AM
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Join Date: May 2004
Location: MD.
Posts: 225
Re: 6.5/.284 bullet drop

Timbo
If this helps I shoot 142 SMK's at 2925fps last week from a 100 yard zero I dialed on 8 MOA at 500 yards and 24.5 MOA at 1000.
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  #6  
Old 07-28-2005, 11:31 AM
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Location: Central PA
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Re: 6.5/.284 bullet drop

33.5" = 6.4MOA if i calc right...

Rim -- my 142's at 2930+ take 7.5MOA to get from 100-500 at Mifflin.

JB
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  #7  
Old 07-28-2005, 07:26 PM
 
Posts: n/a
Re: 6.5/.284 bullet drop

Hey rimfire


Is that with..."THE LOAD" How many grains ya pushin now? [img]/ubbthreads/images/graemlins/wink.gif[/img]

JOe
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