close
Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Rifles, Bullets, Barrels & Ballistics

Rifles, Bullets, Barrels & Ballistics Applied Ballistics

Reply

Wind deflection at the muzzle

LinkBack Thread Tools Display Modes
  #1  
Unread 02-28-2003, 11:58 AM
Silver Member
 
Join Date: Jul 2002
Location: The Grassy Knoll
Posts: 229
Wind deflection at the muzzle

Looked in the archives for this but came up dry.

I've heard it said that wind conditions at the muzzle are more important than during time of flight or at the target.

That doesn't make sense. When a projectile leaves the muzzle it is travelling it's fastest in open air. Why wouldn't wind deflection further downrange have the greater affect?
Last Summer I set-up targets at 1, 2, 3 and 400 yards with surveyors tape flags at each distance.
What a learning experience. Numerous times the 100yd flag was blowing one way, the 200yd flag was opposite and the wind leapfrogged like that out to 400.
Or while chuck hunting, it's blowing at the shooter position but not at the chuck.
I understand the wind is important, just need more input.
Thanx.
__________________
Member: The Red Mist Culture
Reply With Quote
  •   #2  
    Unread 02-28-2003, 09:52 PM
    PUBLISHER
     
    Join Date: May 2001
    Posts: 6,477
    Re: Wind deflection at the muzzle

    I just hate shooting in those 100 mph winds!
    __________________
    - -
    Long Range Rifles, LLC - Ready To Ship

    .
    Reply With Quote

      #3  
    Unread 02-28-2003, 11:03 PM
    Platinum Member
     
    Join Date: Jun 2001
    Location: Palmer, Alaska
    Posts: 2,539
    Re: Wind deflection at the muzzle

    Len, [img]images/icons/grin.gif[/img] [img]images/icons/grin.gif[/img] [img]images/icons/grin.gif[/img]

    With a gust of wind, the earlier the angle of the bullets path is changed, the farther it will be off in a given distance. 1 moa at 200 yards is about 2", at 400 yards it's about 4", so if it has traveled 200 yards already and hits a 10 mph full value wind (3 o'clock or 9 o'clock) it will deviate half what it would have if it had encountered the gust at the muzzle and had twice the distance to still travel.

    100 mph winds, reminds me of a time when I was younger on a fishing boat 75 miles off shore just joggin along in a storm with a steady 100 and gusting to 120 knots on the wind meter. I was setting in the wheelhouse on watch, the huge fire extinguishers had blown loose from the walk rail outside but were tethered off, they were flying perfectly horizontal in the wind. What a storm that was! Made the 220 foot boat I was on seem real fricken small!!! [img]images/icons/shocked.gif[/img]
    __________________
    Brent Moffitt
    Reply With Quote
      #4  
    Unread 02-28-2003, 11:26 PM
    Gold Member
     
    Join Date: Sep 2001
    Location: North, Texas
    Posts: 612
    Re: Wind deflection at the muzzle

    Brent, sounds like you were in the Coast Guard.
    __________________
    Courage,Spirit and Honor
    Pass It On
    Reply With Quote
      #5  
    Unread 03-01-2003, 12:47 AM
    Silver Member
     
    Join Date: Nov 2002
    Location: St. Louis
    Posts: 189
    Re: Wind deflection at the muzzle

    Wind deflection near the shooter induces a new flight path, the error of which is amplified the further the bullet travels...

    Consider the extreme case - a 100 mph crosswind 1 inch from the muzzle vs. a 100 mph crosswind 1 inch from the target. Which would we prefer?

    [ 02-28-2003: Message edited by: STL_Shooter ]
    __________________
    STL. Principal Consultant and Managing Partner - Association of Bifurcated Tangential Ballistic Apologists, LLP.
    Reply With Quote
    Reply

    Bookmarks

    Thread Tools
    Display Modes


    Similar Threads for: Wind deflection at the muzzle
    Thread Thread Starter Forum Replies Last Post
    Velocity at 10ft from muzzle and at the muzzle YOTE Long Range Hunting & Shooting 5 09-01-2011 03:24 PM
    starter budget cheap wind meter...that still reads wind!?! hmbleservant Long Range Hunting & Shooting 3 06-25-2011 10:43 PM
    Physical wind deflection Vs book value peterb Rifles, Bullets, Barrels & Ballistics 2 06-28-2009 11:53 AM
    how much wind is too much?? Frogman77 Long Range Hunting & Shooting 3 04-22-2009 02:07 PM


    All times are GMT -5. The time now is 08:32 AM.


    Powered by vBulletin ©2000 - 2016, Jelsoft Enterprises Ltd.
    Content Management Powered by vBadvanced CMPS
    All content ©2010-2015 Long Range Hunting, LLC