On 1911 its recomended to change recoilspring every 5000 round.
But noone is recomending to change the recoilspring on a luger.
Don, I don't belive that your luger will ever function with the low power ammo you shhot and I recomend you to change spring instead.
I don't belive that can be done to often, and a wolf spring doenst cost very much
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