Shape Charge....
So what in the world does rifle ammunition and explosives have to do with
the internal combustion engine?
--- EVERYTHING ---
After all we are using a gasoline/air mixture to create a explosion/combustion
inside the combustion chamber/bore of a engine.
45-70 30-06
The photo on the left is of a 45-70 US gov. rifle cartridge used in the late 1880's, It used 70 grains of black powder to drive a
.45 caliber bullet at a velocity of 800 fps. (feet per second) Even with today's smokeless powders
it has a hard time reaching a velocity of above 1275fps. This is a antiquated cartridge design for all means.
Examine the photo on the right, it is a 30-06 rifle cartridge, this is the cartridge that helped the allies win the second world war.
When it was a new design a 100 years ago....it would put a .30 caliber bullet out at 2000fps,
and with today's smokeless powders it can carry the same bullet in the range of 2400fps.