Quote Originally Posted by J.Baker View Post
JeepsAndGuns noted earlier in the other thread that he thought Fred replaced the spring on his rifle when he T&T'd it, but it's still the factory spring. What Fred does is measure the initial rate, and if it's higher than it should be he essentially takes the O.D. down until it measures the spec he wants it to (pounds per one inch of compression). That's why the spring wire looks flat rather than round.
I was not aware of this. No one has ever explained it. I just knew it looked different and assumed it was a new spring, had no idea it was the original one that was modded. Good to know.