Conference vmsnet::hunting$note:hunting

1208.0. "Ballistics Table Service" by GLDOA::ROGERS () Thu Oct 08 1992 13:44

          <<< LOSER::DISK$LOSER_PUB:[NOTES$LIBRARY]FIREARMS.NOTE;1 >>>
                 -< God made man, but Sam Colt made men equal >-
================================================================================
Note 5300.0                 Ballistic Tables Service                  No replies
GLDOA::ROGERS                                        93 lines   8-OCT-1992 12:37
--------------------------------------------------------------------------------
    What follows is a service that we are offering for anyone who is
    interested.  It is fee based, but, like shareware, you get the product
    and then decide what it is worth.  We hope you'll like it and find it
    useful in hunting or target shooting wherever you do it.  We hope that
    you will find the value to be around what you might invest in a stop at
    MacDonalds for lunch (extra value meal).
    
    To run a series of tables, we need:
    
    		bullet data such as weight, muzzle vel, B.C. if you 
    		it, if not, we'll calculate it.
    
    		sight data such as centerline height above bore, your
    		maximun PBR (point blank range) deviation.  For this 
    		just tell us how much above or below the point of aim
    		you will accept an impact.  We'll calculate PBR and
    		incorporate it in the table.
    
    		meteorological data such as altitude, temperature. If
    		you know that you are going to be hunting in Alberta
    		in December but need to sight the rifle in now, we can
    		give you a table for 60deg F and another showing effect
    		of temperature at 20deg F at 7000ft altitude.
    
    The tables that we'll normally provide will be for standard conditions
    (59deg, sealevel) and for 30deg F.  We'll also add crosswind data for
    90deg relative (we can provide any relative crosswind bearing) at 10mph
    and 20mph.  We can also provide uphill/downhill tables for up to 60deg.
    
    No more guesswork.  Shoot with confidence.  Sample below is for .416rem
    300x bullet.  The table is 0-500yds in 25yd increments.  It can be
    anything you want.  The PBR max dev is 4in at 260yds.  "y" coordinate
    is trajectory altitude above sealevel.  "z" is windage deviation (this
    table is for 0 crosswind).  Path is the bullet's deviation from line of
    sight.
    
    Tables are developed via very accurate particle ballistic numerical
    integration.   Send requests with data above to GLDOA::ROGERS. 
    
    Mr. moderator: I hope this does not bend the rules excessively (or at
    all).  The sharware approach is designed to cover linecharge costs and
    supplies.  
    
      
           10:43 p.m.
           10/6/1992

<< PROGRAM INPUTS FOR TRAJECTORY TABLE >>
Cartridge:                      .416rem/300 X
Bullet Weight:                    300 grains
Initial Velocity:                2936 ft/sec
Sight-in Angle:                6.4310 MOA
Initial Angle of Line of Sight:     0 Degrees
Maximum Time of Flight:             5 Seconds
Wind Velocity:                      0 mph
Relative Wind Direction:            0 Degrees
Initial Temperature:               30 Degrees Fahrenheit
Initial Barometric Pressure:    28.96 in. Hg
Relative Humidity:                 35 percent
Initial Altitude:                 630 ft
Drag Function:                     G1
Ballistic Coefficient:          0.406

.416Rem 300gr X hot load


<< TRAJECTORY TABLE FOR .416rem/300 X >>

                                -----Trajectory-----        -Sight Corrections-
Range  Time  Velocity Energy     x       y       z     Path  Windage Elevation
 (yd) (msec) (ft/sec) (ft-lb)   (yd)    (ft)    (in)   (in)   (MOA)    (MOA)
-------------------------------------------------------------------------------
   0       0   2936    5741       0  630.00     0.0    -1.6     0.0     0.0
  25      26   2875    5507      25  630.13     0.0    -0.0     0.0     0.2
  50      52   2816    5280      50  630.24     0.0     1.2     0.0    -2.4
  75      79   2757    5061      75  630.32     0.0     2.3     0.0    -2.9
 100     107   2699    4850     100  630.38     0.0     3.0     0.0    -2.9
 125     135   2641    4646     125  630.42     0.0     3.4     0.0    -2.6
 150     163   2585    4449     150  630.43     0.0     3.6     0.0    -2.3
 175     193   2529    4259     175  630.41     0.0     3.4     0.0    -1.8
 200     223   2474    4075     200  630.37     0.0     2.8     0.0    -1.3
 225     253   2419    3898     225  630.29     0.0     1.9     0.0    -0.8
 250     285   2365    3727     250  630.19     0.0     0.7     0.0    -0.2
 275     317   2312    3561     275  630.05     0.0    -1.0     0.0     0.3
 300     350   2260    3402     300  629.88     0.0    -3.1     0.0     1.0
 325     383   2208    3248     325  629.67     0.0    -5.5     0.0     1.6
 350     418   2157    3099     350  629.43     0.0    -8.5     0.0     2.3
 375     453   2107    2956     375  629.14     0.0   -11.9     0.0     3.0
 400     489   2057    2818     400  628.82     0.0   -15.8     0.0     3.8
 425     526   2008    2685     425  628.45     0.0   -20.2     0.0     4.5
 450     563   1959    2557     450  628.04     0.0   -25.1     0.0     5.3
 475     602   1912    2434     475  627.58     0.0   -30.6     0.0     6.2
 500     642   1865    2316     500  627.07     0.0   -36.7     0.0     7.0