Early guncotton was unstable however, and burned very fast and hot, leading to greatly increased barrel wear.

These had a long engraving portion that caused considerable barrel wear.

Only a small part of the tanks with the Cavalry alone were modified however, because it greatly increased barrel wear.

Both methods offered advantages and disadvantages, though in general greater muzzle velocity meant increased barrel wear.

The two part barrel was more economical as barrel wear was not even.

The solution to the excessive barrel wear was found to be deeper rifling grooves.

Over this, the expected barrel wear combined with the narrow driving bands could lead to a loss of pressure.

They were expected to fire 1,100 rounds before barrel wear made repair or replacement necessary.

The hard-chromed barrel bore reduces barrel wear and protects it from corrosion.

Furthermore, their shells carried more explosives than those of guns, and caused considerably less barrel wear.