#485656 - 11/08/07 03:31 PM
Need help with ballistics chart
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Spike
TnDeer Old Timer
10 Point
Registered: 05/31/99
Posts: 2699
Loc: Oakland, TN. USA
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On Winchester's web site it shows Ballistics trajectory
What does it mean in the diff between Short trajectory and long trajectory?
It shows 0 at 150yds and -0.8 at 150 yrds and so on on the short trj chart and +1.3 at 100yrds and +1.2 at 150yds on the long trajectory chart.
What is the diff in long and short trajectory?
I am shooting a 150gr Ballistic silvertip in 7mm rem mag. I am sighting for this round Sat. and any help would be appreciated. I got a new swarvoski scope and want to get it dialed in. Bore sight is done now I need to fine tune. I will be hunting a large cutover corn field and may have a shot as far as 350 to 400 yards. I am comfortable with the gun and know its range. I just could not look at that 600$ scope in the box anymore and pulled my Nikon off and put it on. I need to know the ballistics so I can make a good shot at long range if needed.
Edited by Spike (11/08/07 03:34 PM)
_________________________
If the government wants my guns, I will give them the bullets first.
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#485673 - 11/08/07 03:57 PM
Re: Need help with ballistics chart
[Re: Spike]
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cdw338
8 Point
Registered: 11/17/01
Posts: 1326
Loc: Ky Lake Paris Tn
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Spike - I just went and looked at there chart.
If your gun matches velocity, their short range is if you zero
your gun at 100 yards.
Their long range is if you zero at 200 yards. If you 1.3 inches
high at 100, then they are saying that you will be zeroed at
200 yards.
I would set your gun at 2 to 3 inches high at 100 yards and shoot
dead on. If you get a real long shot, hold on the back line.
What you should do to be sure is to shoot at the distance you
will be shooting at game. That is the only way to be sure.
Hope this helps. Some of this is a guess and all will be based
on the velocity you get from your gun using this ammo.
Edited by cdw338 (11/08/07 04:09 PM)
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#485765 - 11/08/07 04:47 PM
Re: Need help with ballistics chart
[Re: cdw338]
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smstone22
16 Point
Registered: 01/11/04
Posts: 16325
Loc: Allardt, TN
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I would not rely on ballistic charts. Practice practice practice
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- Fentress Roots 200 years and growing
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#486424 - 11/09/07 07:54 AM
Re: Need help with ballistics chart
[Re: smstone22]
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Spike
TnDeer Old Timer
10 Point
Registered: 05/31/99
Posts: 2699
Loc: Oakland, TN. USA
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CDW thanks that makes sense now. Steven Gonna shoot shoot shoot this weekend at the range. We have a 50yd, 100yd, 150yd, 200yd, and a 300yd lane. I should have done this along time ago I know.
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If the government wants my guns, I will give them the bullets first.
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