Just tried something I've never done before on a springer.... and it worked !

[jjjohn]

Didn't the first HW 97's in .177 have square section springs in them?

[Dornfelderliebe]

I have always wondered what benefit there is to square section over round?

[evert]

I have always wondered what benefit there is to square section over round?

More steel that can occupy the same space?

[Murphy]

I put one is an HW80 once and it could shoot through engine blocks.

[Dornfelderliebe]

I'm sure they'd make excellent piston return springs in elderly diesel engines.

[Shed tuner]

Either equal to or marginally greater than the 11 fpe I am currently getting with a standard spring. with no loss of manners as shown with the comments on over powerfull Oxs stuffed into guns that can't take them.
My thoughts are can a shorter Titan equal a standard BSA spring.

the spring is not your problem... you need a new piston head/sealing arrangement, as per my reply on your other "meteor musings" thread. More spring + bad sealing = horrible, self destroying recipie for disaster...

[Dornfelderliebe]

Cheers ST I shall try to replicate my tinkering this winter.

[TonyL]

Yep, increasing swept volume slightly but, and much more valuable, increasing efficiency so as to be able to use less spring should be the aim, resulting in a much more pleasant powerplant and less stress to the internals.