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0-.5-1-2-3
#6977484
11/30/17 03:50 PM
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Joined: Dec 2008
Posts: 41,173
J.G.
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Read: Zero Point five One Two Three
What's that? Thats where I start with holds, in my head for a .308, 178 A-Max, out to 500 yards. That was my DOPE when I started with a .308 and Mils.
100 yards, 0 200 yards, .5 300 yards, 1.0 400 yards, 2.0 500 yards 3.0
When I'm shooting something with a higher BC and more velocity, I know the holds (dials) are a little less, 6.5 Creedmoor, 140 ELD-M
100 yards, 0 200 yards, .4 300 yards, 1.0 400 yards, 1.8 500 yards, 2.6
7 Rem Mag, 180 VLD
100 yards, 0 200 yards, .3 300 yards, .9 400 yards, 1.6 500 yards, 2.4
But you see, they're still close to the .308, in numbers, they're just not dropping as much (of course).
My brain remembers the plain vanilla .308 Win holds, because they're nice round numbers. I reduce as needed based on what rifle I'm carrying at the time. Last week a hog popped out about 200 yards in front of my truck, on private property, and just stood still. I opened the door, laid the LR-308 between the door and A-post, held .5 Mil on his neck, and he dropped in his tracks. No time for ranging, no need. 5X on a Mil/Mil scope worked just fine, when speed is key. The .308 load I'm shooting out of the gas gun is slower, of course, but the corrections are still pretty close:
100, yards 0 200 yards, .5 300 yards, 1.3 400 yards, 2.3 500 yards, 3.3
Again, still very close to the original plain vanilla .308 bolt action with a 178 gr A-Max, it just reauires a tad more correction.
Save Texas, kill hogs.
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Re: 0-.5-1-2-3
[Re: J.G.]
#6977489
11/30/17 03:56 PM
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Joined: Sep 2009
Posts: 18,954
ChadTRG42
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You got it!!! Once you understand basic trajectory, they are all about the same out to about 300-400 yards. You simply fine tune the come ups with the round you are shooting. Faster rounds vs slower rounds.
My son's Tikka T3 20" barrel in 308 shooting my 168 A-max BULK ammo at 2530 fps is similar:
In Mils 400- 2.2 500- 3.5 600- 4.8 700- 6.3
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Re: 0-.5-1-2-3
[Re: J.G.]
#6977582
11/30/17 04:54 PM
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Joined: Sep 2012
Posts: 4,011
68A
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Thanks for the reminder and, very accurate. My 300WM data shows about on par with your 6.5 numbers. When season ends I'll have time to come out and verify that data.
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Re: 0-.5-1-2-3
[Re: J.G.]
#6977814
11/30/17 08:52 PM
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Joined: May 2015
Posts: 1,403
Chunky Dunk
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I like this thought process, very simple and easy to use. Thanks!
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Re: 0-.5-1-2-3
[Re: Chunky Dunk]
#6977856
11/30/17 09:34 PM
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Joined: Dec 2008
Posts: 41,173
J.G.
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Re: 0-.5-1-2-3
[Re: J.G.]
#6977887
11/30/17 10:02 PM
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Joined: Oct 2013
Posts: 3,420
ZK-315
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Fireman, out of curiosity, what speeds are you pushing that 180 vld in your 7mag?
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Re: 0-.5-1-2-3
[Re: ZK-315]
#6977894
11/30/17 10:06 PM
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Joined: Sep 2009
Posts: 18,954
ChadTRG42
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Fireman, out of curiosity, what speeds are you pushing that 180 vld in your 7mag? He's pushing it this fast!
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Re: 0-.5-1-2-3
[Re: J.G.]
#6977904
11/30/17 10:14 PM
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Joined: Oct 2013
Posts: 3,420
ZK-315
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I was just curious. I have my 7wsm running the 180s, and just recently changed my powder. 2 different chronys (one chrony on old load, different chrony on new load), but was still 100fps slower on this new powder. Going Saturday morning to check out dope before heading out west for a hunt.
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Re: 0-.5-1-2-3
[Re: ChadTRG42]
#6978050
12/01/17 12:08 AM
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Joined: Dec 2008
Posts: 41,173
J.G.
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Fireman, out of curiosity, what speeds are you pushing that 180 vld in your 7mag? He's pushing it this fast! I toned it down from 3030 fps MV, to 2900 fps MV.
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Re: 0-.5-1-2-3
[Re: J.G.]
#6980524
12/03/17 04:01 AM
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Joined: Nov 2008
Posts: 9,952
LFD2037
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I like and appreciate these simple processes you post. Thanks!
R.I.P. CPO Matt Mills-(DEVGRU)- You will NEVER be forgotten! 10-25-75 / 8-6-11 *K.I.A.*
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Re: 0-.5-1-2-3
[Re: J.G.]
#6980578
12/03/17 05:38 AM
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Joined: Jul 2015
Posts: 23,179
Bee'z
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Nice. I will whip it out and post the correction for 168gmm tomorrow.
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Re: 0-.5-1-2-3
[Re: J.G.]
#6994321
12/13/17 06:56 AM
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Joined: Mar 2009
Posts: 1,365
J McCoy
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hOW bout them wind hold rules of thumb while you're at it
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Re: 0-.5-1-2-3
[Re: J McCoy]
#6994390
12/13/17 12:23 PM
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Joined: Dec 2008
Posts: 41,173
J.G.
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Re: 0-.5-1-2-3
[Re: J.G.]
#6999032
12/16/17 11:10 PM
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Joined: Jun 2011
Posts: 33,988
Buzzsaw
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you don't even need a dial elevation turret anymore. u bad
SPACE FOR RENT
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Re: 0-.5-1-2-3
[Re: J.G.]
#6999083
12/17/17 12:13 AM
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Joined: Aug 2011
Posts: 12,547
chital_shikari
Minor in training
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Re: 0-.5-1-2-3
[Re: Buzzsaw]
#6999348
12/17/17 11:23 AM
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Joined: Dec 2008
Posts: 41,173
J.G.
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you don't even need a dial elevation turret anymore. u bad Been holding elevation for years, and you've watched me do it.
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