The original(18#?) spring had 22 coils and the Wolff reduced power 16# spring has 24.
Wolff? The springs I ordered from Wolff and Tripp also are 13 coils.
I used shok buffs to prevent damage from peening.
You shoot enough and you can feel when the spring goes soft and needs changing.
DC, for starters check posts #92-94 on this thread. If you have time you'd benefit (re: recoil springs info) to reading the entire thread paying special attention to the posts by 1911Tuner. You'll probably want to skip some of the more "cerebral" posts (no offense intended to anyone) involving formulas and theories unless you're an engineer of some sort but there's a lot of good info in this thread if you can make it through it.Wow, and I thought adding up DFU on my hospital plan on my masters exam was mind bending.
OK rc, should I still get the 18# spring for my commander? I didn't see this thread until today. I'm going to be shooting factory ammo and/or reloads of very similar velocity.
Dang, my head hurts.............