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Old 06-23-2012, 11:52 PM   #29 (permalink)
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Join Date: Dec 2008
Location: Houston, TX

Originally Posted by adam45 View Post
Good information fellows. The Black spring I have a few of, the gold I have bought with the AM/MM kit. I haven't seen a silver spring outside of the level 10 kit and beause it significantly longer I would recognize it pretty quickly.
So, when you pull a spring out of a box after several years and can't remember if it is "new", you just have to look at the length compared to the end of the bolt it is on. Flush and a little under is something you would use on a pump mag, not recommended for regular use. A new gold or unused black spring will be about 3/16" to 1/4" above the end. Red and silver L10 springs are about 1/2" or 5/8" above the end when new / uncut. The longer length means lighter bolt action, but they need higher chamber pressure to blow forward which is what keeps them shooting at higher velocities but not very well at lower velocities.
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