Yaw angle of a 14,5mm bullet....

I've only one thing to say to that - 'gyroscopic induced rifling'

Mind you if it was round like a musket ball, it wouldn't have any yaw or wobble would it?

It works with the flights on an arrow too.

Not many people realise the flights must all be from the same type of wing... e.g you can't mix left wing and right wing feathers 'cos the curve is different, and it won't spin....

I should have waited 'til April the first then everyone would think I was joking!

Del

I saw you post that reply before and wasn't to sure if you were joking.... especially as some arrows I've seen including darts have plastic flights so they don't induce a spin?

It does make some sense though to rotate the arrow in flight...

John.

Plastic fletchings should be fixed at a slight angle to induce spin.
Mind, even with no spin they do improve stability.

Del

Shot gun slugs travel in a spiral 2" to 2-1/5" radius?

Shot gun slugs

Shirley a contramadiction in terms?

My Brother restored a hammer action 4 bore punt gun.... now that was a big sucker!

Ohhh yes those duck guns they were huge in length...

Anybody know why a shotgun is 'measured' in 12 bore or 4 bore??

I know a 410 is the calibre of the cartridge 0.410" diameter I think...

John.

Yes..its the number of lead balls which just fit down the bore which would weigh 1Lb.

Do I get a sardine?

So a 4 bore must have a tiny barrel?? I thought they were quite big?

John.

Do pay attention and stop tumbling in your Panda cage... else no bamboo shoots for you!

4 bore... 4 balls weigh a pound ..so each ball is 1/4 lb... e.g. BIG

12 bore...12 balls to the pound...so each ball weighs 1/12 lb e.g not so big

Del

Ahh got it!

Its all balls to me

John.

Some rounds are designed to tumble, but only after impact so that it maximizes damage to organs and blood vessels..

I believe more damage is done due to the shock wave. But a tumbling round would diffently make a bigger nastier hole.

"But a tumbling round would diffently make a bigger nastier hole."

It does. That, in fact, is what's responsible for the notorious stopping power of the NATO 5.56mm round.

Notorious stopping power of the NATO 5.56?

SUrely you jest.

http://www.military.com/soldiertech/0,14632,Soldiertech_Ammunition,,00.html

milo

...becomes less that...

Less than...less THAN!! Why do people insist on using 'that' for comparitives? More that...less that...fewer that...The word is THAN!!!!!

I didn't think the archer's paradox applied to bullets .

(An arrow wobbles in flight as it flexes around the bow ... it then oscillates for the first few yards of flight..maybe as much as 10yards. and will have reduced hitting power until stabilised)

Del