Thread: Is it Pressure or Powder Capacity?

Originally Posted by Cordite

Barrel erosion happens when gases bypass the bullet, this is a high-pressure high-temperature erosive FLOW.

I don't buy it that gases are significantly cooler 3-4 cm into the barrel, it's more that the bullet by then has found and married the lands and grooves and bypass of gases is less.

Your post is difficult to understand, but I think you are saying that it is the pressure and temperature that causes barrel erosion not the amount of powder capacity of the cartridge.
I also have never heard the idea that erosion is caused when hot gases 'bypass' the bullet. I would have thought the greatest amount of gasses would be behind the bullet and hence be the main cause of erosion not the gasses in front of the bullet?