Gunnies.....

[FlyoverCountry]

[phxsparks]

The level of her ignorance is astounding.

[PRIME]

The level of her ignorance is astounding.

New Mexico needs this lady in the US Senate. She could take Dianne Feinstein's place as their resident firearms expert.

[phxsparks]

The level of her ignorance is astounding.

New Mexico needs this lady in the US Senate. She could take Dianne Feinstein's place as their resident firearms expert.

]

[Pipkunts]

We call shooting at targets beyond 1,000 yards (or meters) Extreme Long-Range (ELR) shooting. I don't shoot rifles any more due to age and infirmity, but I am actively working on the ballistic solutions for such ELR work. My understanding of the coning motion of spin-stabilized bullets in flight has facilitated formulating aerodynamic jump trajectory deflection and horizontal spin-drift deviation. These corrections are now calculated in ballistic firing solution software.

If you project the bullet's trajectory sideways onto a vertical plane, you find the familiar downward curving "parabolic" shape. If you project the trajectory downward onto a horizontal plane, you see a "scaled down" version of exactly that same "parabolic" shape. The horizontal trajectory deviation is rightward for right-hand spinning bullets, and vice versa. The scale factor of these horizontal spin-drift deviations is just the ratio of the horizontal aerodynamic lift force to the (vertically acting) weight of the projectile. The rightward horizontal angle of attack causing the aerodynamic lift arises as a gyroscopic reaction to the "arcing over" of the bullet's nose in following the downward curving of the flight path due to gravity.

Here is a figure showing the extreme positions of a coning rifle bullet in free (ballistic) flight. This figure is from my Coning Theory of Bullet Motions paper published in 2008 (available on arXive.org and researchgate.net).



The Mean CG of the revolving bullet travels along (and defines) the Mean Trajectory of the ballistic flight. This diagram shows the coning motion of the bullet in a coordinate system moving along this Mean Trajectory with the Mean CG of the bullet. The pointing direction of the bullet's spin-axis rotates around in a circular path 180-degrees out of phase with the CG offset. The axis of the coning motion always points directly into the "eye" of the apparent wind approaching the nose of the bullet.

Keep up the good work Prime! You had me at Horizontal trajectory deviation.

I know I'm well out of my league here, but I've seen the likes of these blokes hit and the ball will travel for 80yrds a yrd above the turf before it lifts 40yrds into the air! Ball coheficient right 
https://youtu.be/jDZh7iZQAZM

[FlyoverCountry]

[FlyoverCountry]

[Aces]

https://www.youtube.com/watch?v=vz2PowXsQaM

[phxsparks]

https://www.youtube.com/watch?v=vz2PowXsQaM

Looks Good!

[Saul Goode]

Here’s an oldie. My dad gave me this in 1963 when I got my first gun. An Iver Johnson single shot 20ga. I use this oil on some of my knives but use it sparingly. Everytime I pull it out I think of my dad squirrel hunting with me.