I've jacked up a wheel that was out of balance, to remove it and put the wheel on the balance machine, but before I removed it I tried pushing perpendicular to the tire all the way around the rim but it didn't rotate or spin. Even though it was out of balance it still didn't rotate! Even when I pushed really hard it didn't rotate. Even though it was mounted on a spindle with roller bearings with very little rolling/spinning resisting friction, it still didn't rotate. Now when I tried to rotate it by applying a force perpendicular to the spindle central axis , ie pushing on the tread tangent to the tire in a normal rotating direction,it would rotate/spin very easily. If an object flying through the air is spinning and the Centre of Gravity is off centre from the central axis but rotating about the central axis then the flight path will tend to be a spiral, if it isn't spinning then it's flight path is akin to a conventional twin engine aircraft flying with one engine shut down that will fly in a big arc unless considerable counter tail rudder authority is applied to keep a straight path. However a wad column moving through a barrel is not External Ballistics it's Internal Ballistics. Externally unlike a Rocket it is not self propelled by concentric or eccentric forces which may or may not require controls to prevent erratic flight External Ballistics or flight path control to counter such things as Yaw and Roll and Rotation and Coriolis.
Shotshell wad columns ie shotcups with shot do not spin in a smooth bore barrel. Ned says different and since the onus is always on the originator of the hypothesis to prove it by more than a few rub marks on a choke, I do not doubt the fact that he has some marks on his choke I do doubt his conclusions as to what caused them, that could and probably were caused by something other than a spinning wad column, I'm still waiting, and I know a lot of others are too, for some real factual scientific and visual proof of his hypothesis.
It's these types of all encompassing statements, that are just here-say, that are accepted by people less knowledgeable about the subject and sometimes accepted as gospel because of someone's unproven hypothesis or interpretation rather than proven facts that somewhere along the time line could cause some serious problems.
As Yuchi, who admits to being a neophyte about Engineering analysis who saw the marks and maybe they looked like screw threads to him as well so assumed that's what they were and were caused by a spinning wad, wrote:
by Yuchi1 » Fri Mar 07, 2014 10:18 pm
If you don't furnish some type of technical/scientific resource these guys can sink their academic teeth into, you will continue to be their punching bag.[quote="Yuchi1"] by Yuchi1 » Fri Mar 07, 2014 10:18 pm
"It's not the game but the chase ~ not the trophy but the race !" from my Dad, many years ago.