HuntingNut
HuntingNut
   Login or Register
HomeCommunity ForumsPhoto AlbumsRegister
     
 

User Info

Welcome Anonymous


Membership:
Latest: reklawgb
New Today: 0
New Yesterday: 1
Overall: 12457

People Online:
Members: 0
Visitors: 73
BOT: 4
Total: 77
Who Is Where:
 Visitors:
01: Forums
02: Forums
03: Forums
04: Forums
05: Forums
06: Forums
07: Forums
08: Forums
09: Forums
10: Forums
11: Forums
12: Forums
13: Forums
14: Forums
15: Forums
16: Forums
17: Forums
18: Forums
19: Forums
20: Home
21: Forums
22: Forums
23: Forums
24: Forums
25: Forums
26: Forums
27: Forums
28: Your Account
29: Forums
30: Forums
31: Forums
32: Forums
33: Forums
34: Forums
35: Forums
36: Forums
37: Home
38: Forums
39: Forums
40: Forums
41: Forums
42: Photo Albums
43: Forums
44: Forums
45: Photo Albums
46: Forums
47: Forums
48: Forums
49: Forums
50: Forums
51: Forums
52: Photo Albums
53: Forums
54: Forums
55: Forums
56: Forums
57: Forums
58: Photo Albums
59: Forums
60: Forums
61: Forums
62: Forums
63: Home
64: News
65: Forums
66: Forums
67: Forums
68: Forums
69: Forums
70: Forums
71: Forums
72: Forums
73: Forums
  BOT:
01: Forums
02: Forums
03: Forums
04: Forums

Staff Online:

No staff members are online!
 

Coppermine Stats
Photo Albums
 Albums: 303
 Pictures: 2374
  · Views: 295684
  · Votes: 1301
  · Comments: 86
 

Support our Advertisers

10mph wind deflection calculated incorrectly
Help / Support / How-to's / Discussion related to PointBlank Software and External Ballistics in general
Post new topic   Reply to topic   Printer Friendly Page    Forum Index » PointBlank Software

View previous topic :: View next topic  
Author Message
olinaz
Rookie Member
Rookie Member


Joined: May 23, 2015
Posts: 2

PostPosted: Sat May 23, 2015 11:26 am    Post subject: 10mph wind deflection calculated incorrectly Reply with quote

When I compute the ballistics for loads the wind deflection (10mph) is calculated incorrectly. For example, for one load the wind def for 25 yards is -454.58, 100 yards is -438.90, 1000 yards is -250.80, and 1500 yards is -146.30. I have updated for the latest changes. It was working fine and then just started doing this. Any ideas?
Back to top
View user's profile
DallanC
Site Admin
Site Admin


Joined: Jan 18, 2005
Posts: 3141
Location: Utah

PostPosted: Sat May 23, 2015 12:56 pm    Post subject: Re: 10mph wind deflection calculated incorrectly Reply with quote

What variables are you using in your computation? What are the max range and range increment settings?


-DallanC
Back to top
View user's profile Photo Gallery
olinaz
Rookie Member
Rookie Member


Joined: May 23, 2015
Posts: 2

PostPosted: Sat May 23, 2015 8:16 pm    Post subject: Re: 10mph wind deflection calculated incorrectly Reply with quote

I am using 25 yard increments and 1500 yard max.
Back to top
View user's profile
BowPhoto99
Rookie Member
Rookie Member


Joined: Nov 19, 2010
Posts: 2

PostPosted: Mon Jun 08, 2015 8:59 pm    Post subject: Re: 10mph wind deflection calculated incorrectly Reply with quote

If it helps, I too am having the same wind deflection calculations: using a .264 Hornady AMAX, 500 yd range, 50 yd increments, MV velocity of 2650 fps, and at 50 yrds says -438.64 inches and at 500 yards is -346.83 inches for 10 mph crosswind.

This was working last fall so must be in a recent update since then?

Everything else is stellar though, working well.

MFP
Back to top
View user's profile
BowPhoto99
Rookie Member
Rookie Member


Joined: Nov 19, 2010
Posts: 2

PostPosted: Fri Jun 19, 2015 5:49 pm    Post subject: Re: 10mph wind deflection calculated incorrectly Reply with quote

Finally got to posting the table of data.

For my .264 shooting at MV 2660 fps, sight height 1.5, and out to 500 yards, I got deflections of : 100 yd = -485.81, 200 yd = -452.68, 300 yd = -439.54, 400 yd = -416.41 and 500 yd = -393.28.

Not only is the wind deflection getting smaller the farther out, but I'd be missing the target by a whole bunch!

Can anyone else replicate this?
Back to top
View user's profile
DallanC
Site Admin
Site Admin


Joined: Jan 18, 2005
Posts: 3141
Location: Utah

PostPosted: Sat Jun 20, 2015 7:34 pm    Post subject: Re: 10mph wind deflection calculated incorrectly Reply with quote

I finally found time to mess with this, I've found the problem and have a potential fix. I hope to push a new version up tomorrow with a few more fixes.


-DallanC
Back to top
View user's profile Photo Gallery
Elvis
Super Member
Super Member


Joined: Jul 27, 2008
Posts: 6975
Location: south island New Zealand

PostPosted: Sat Jun 20, 2015 11:11 pm    Post subject: Re: 10mph wind deflection calculated incorrectly Reply with quote

YOU DA MAN
thank you for all the time and effort you put in DallanC

_________________
You shot it You pluck it !
Them who eats the most duck eats the most feathers!
Back to top
View user's profile
PaulS
Super Member
Super Member


Joined: Feb 18, 2006
Posts: 3394
Location: South-Eastern Washington - the State

PostPosted: Sun Jun 21, 2015 2:52 pm    Post subject: Re: 10mph wind deflection calculated incorrectly Reply with quote

Good job Dallan! I hope you get some contributors out of this. It's a great piece of software - it's just too bad it isn't portable to Linux. Wink

_________________
Paul
__________________
Speer, Lyman, Hodgdon, Sierra, and Hornady = reliable loading data
So and So's pages on the internet = NOT reliable loading data
Always check data against manuals
NEVER exceed maximum listed loads
Back to top
View user's profile Send e-mail
Display posts from previous:   
Post new topic   Reply to topic   Printer Friendly Page    Forum Index » PointBlank Software
Page 1 of 1
All times are GMT - 7 Hours



Jump to:  


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Advertisements
 


Valid CSS! Valid HTML 4.01!
Click to check if this page is realy HTML 4.01 compliant for speed :)

All logos and trademarks in this site are property of HuntingNut.com.
The comments are property of their posters, all the rest © 2011 by HuntingNut.com
Interactive software released under GNU GPL, Code Credits, Privacy Policy

.: Upgraded to DragonFly 9.2 by Dizfunkshunal :.