The life of a bolt is anywhere from 12,000 to 20,000 rounds, a regular copper-colored spring lasts about 32,000 to 36,000 rounds. The copper colored spring can last up to three times longer than the bolt . . .Originally Posted by prepare
A USGI stainless steel action spring will last at least 36,000 rounds and cost about $4.00 to $5.00.
Your $20.00 Springco Spring will need to last 144,000 rounds in order to be a better value than a $5.00 spring, but you will have to shoot all 144,000 rounds, maybe more, to recoup the investment. That's poor economics.
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