Recoil Spring Day!

[cebeu]

5" 1911 .45 ACP, OEM 16lb recoil springs, one fresh out of the package and one at ~4000 rounds, primarily standard pressure factory 230gr FMJ but more than a fair share of 230gr +P HST & T-Series. Weapon ran 100% with the used spring.

http://i140.photobucket.com/albums/r14/cunroe/Recoil1.jpg

[Uberjager]

Moduli of plasticity and elasticity, how do they work?

[claimbuster]

Proof of theory that as things get older, they get shorter!

[Zombie Steve]

It's always pretty cool when you replace all the springs. Feels like a new gun.

Just like you don't notice your horsepower slipping away until you get a tuneup. [Driver]