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#6977484 - 11/30/17 09:50 AM 0-.5-1-2-3
FiremanJG Online   content
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Registered: 12/16/08
Posts: 26069
Loc: Wolfe City, TX
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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#6977489 - 11/30/17 09:56 AM Re: 0-.5-1-2-3 [Re: FiremanJG]
ChadTRG42 Online   happy
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Registered: 09/16/09
Posts: 13531
Loc: Lewisville, TX
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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#6977582 - 11/30/17 10:54 AM Re: 0-.5-1-2-3 [Re: FiremanJG]
68A Online   content
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Registered: 09/29/12
Posts: 2924
Loc: North Texas
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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#6977814 - 11/30/17 02:52 PM Re: 0-.5-1-2-3 [Re: FiremanJG]
Chunky Dunk Offline
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Registered: 05/28/15
Posts: 1276
Loc: Rockport
I like this thought process, very simple and easy to use. Thanks!
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#6977856 - 11/30/17 03:34 PM Re: 0-.5-1-2-3 [Re: Chunky Dunk]
FiremanJG Online   content
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Registered: 12/16/08
Posts: 26069
Loc: Wolfe City, TX
Yessir.
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#6977887 - 11/30/17 04:02 PM Re: 0-.5-1-2-3 [Re: FiremanJG]
ZK-315 Online   content
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Registered: 10/11/13
Posts: 2162
Loc: Temple...Hunt in Freestone Co.
Fireman, out of curiosity, what speeds are you pushing that 180 vld in your 7mag?

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#6977894 - 11/30/17 04:06 PM Re: 0-.5-1-2-3 [Re: ZK-315]
ChadTRG42 Online   happy
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Registered: 09/16/09
Posts: 13531
Loc: Lewisville, TX
Originally Posted By: ZK-315
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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#6977904 - 11/30/17 04:14 PM Re: 0-.5-1-2-3 [Re: FiremanJG]
ZK-315 Online   content
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Registered: 10/11/13
Posts: 2162
Loc: Temple...Hunt in Freestone Co.
roflmao 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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#6978050 - 11/30/17 06:08 PM Re: 0-.5-1-2-3 [Re: ChadTRG42]
FiremanJG Online   content
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Registered: 12/16/08
Posts: 26069
Loc: Wolfe City, TX
Originally Posted By: ChadTRG42
Originally Posted By: ZK-315
Fireman, out of curiosity, what speeds are you pushing that 180 vld in your 7mag?


He's pushing it this fast!


roflmao

I toned it down from 3030 fps MV, to 2900 fps MV.
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#6980524 - 12/02/17 10:01 PM Re: 0-.5-1-2-3 [Re: FiremanJG]
LFD2037 Online   happy
THF Trophy Hunter

Registered: 11/05/08
Posts: 7757
Loc: TEXAS
I like and appreciate these simple processes you post. Thanks! flehan
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#6980578 - 12/02/17 11:38 PM Re: 0-.5-1-2-3 [Re: FiremanJG]
2Beez Offline
Chihuahua

Registered: 07/17/15
Posts: 11451
Loc: Lake Texoma, TX
Nice. I will whip it out and post the correction for 168gmm tomorrow.

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#6994321 - 12/13/17 12:56 AM Re: 0-.5-1-2-3 [Re: FiremanJG]
J McCoy Offline


Registered: 03/31/09
Posts: 1267
Loc: Frisco,TX
hOW bout them wind hold rules of thumb while you're at it

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#6994390 - 12/13/17 06:23 AM Re: 0-.5-1-2-3 [Re: J McCoy]
FiremanJG Online   content
THF Celebrity

Registered: 12/16/08
Posts: 26069
Loc: Wolfe City, TX
http://www.precisionriflehunters.com/blog/

Scroll down, you'll see it.
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#6999032 - 12/16/17 05:10 PM Re: 0-.5-1-2-3 [Re: FiremanJG]
Buzzsaw Offline
THF Celebrity

Registered: 06/29/11
Posts: 13764
Loc: Frisco, Texas
you don't even need a dial elevation turret anymore. u bad
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#6999083 - 12/16/17 06:13 PM Re: 0-.5-1-2-3 [Re: FiremanJG]
chital_shikari Offline
Minor in training

Registered: 08/03/11
Posts: 12546
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