| 4seventy |
| (Sponsor) |
| 29/12/03 08:52 AM |
Double Crossed!!!
|
How's this for a bit of info from "The Drilling Hotline".
http://www.drillinghotline.com/double.shtml
"SXS - The argument against optics on a Side by Side is the so-called windage problem. Some recommend to only sight-in on one barrel - but this now reduces your very expensive double to a single shot rifle.
Let's examine the physics of a center line sight-in.
The rifle centers of a .470 caliber are about ½ to ¾" apart.
The rifle is regulated for the barrels to cross at 60 Meters (66 yds.).
The physics states that they will again be ¾" apart at... Answer: 120 meters
Your homework assignment is to calculate when the rifle will shoot 3 to 4" apart.
(You may use graph paper or join Members Only)
O/U - The argument against optics on an over and under rifle is the elevation difference.
That's right, but the difference can be used to your advantage. The lower barrel will give a larger midrange trajectory. A few sessions at the range will work out the unknowns".
