Fact or fiction?

[Leonardj]

I spotted this statement on another forum and thought that it would be interesting to see how it compares with the experience of folks here.

"Using a heavier pellet will cause the pressure (and temperature) to spike higher and earlier in the shot cycle.... In a gun that is marginal on dieseling, this increase in pressure and temperature can cause dieseling to occur.... There have been reports by reputable airgunsmiths that they can tell by "one look" at the spring if the gun was shot with too heavy a pellet from the damage to the spring....that the dieseling can be so violent as to even re-cock the piston...".

We'll break it down into three parts since there are three distinct points being made by that statement.

1)

"Using a heavier pellet will cause the pressure (and temperature) to spike higher and earlier in the shot cycle.... In a gun that is marginal on dieseling, this increase in pressure and temperature can cause dieseling to occur".

Fact or Fiction?

2)

"There have been reports by reputable airgunsmiths that they can tell by "one look" at the spring if the gun was shot with too heavy a pellet from the damage to the spring".

Fact or fiction?

3)

"that the dieseling can be so violent as to even re-cock the piston".

Fact or fiction?