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Post by "DoubleAction" on Mar 14, 2004 2:44:40 GMT -5
The life of a semi auto rest upon proper lubrication and the recoil spring. I can feel when the slide pounds the guide rod head on a weak spring in my 1911s, I can also feel the pounding of a weak spring with the Sigs, It appears as a sudden jolt with a hard strike. Nobody has to tell me to replace the spring, or upgrade the existing one to a higher rating. Another spring to examine is the firing pin spring; a weak firing pin spring will cause the firing pin to delay in retracting, in time for the case to eject. This condition will cause the firing pin print on the spent case to have a drag mark to one side of the cap. This is because the firing pin is still protruding through the breech face when the spent case is being ejected. This can cause the firing pin to break off, or wear prematurely. Examine spent cases after every range practice session.
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Post by papercutter on Apr 12, 2004 19:51:37 GMT -5
The mechanic in me loves to soak guns in solvent, to remove caked in sludge. I do it for friends ,they say did you work on my trigger or lighten the spring ,,, No just soaked it & air hosed it off .
An old timer told me oil a .45 bushing & slide to barrel lugs to keep the sludge soft.
Its best to warm & blow air to minimize the remaining solvent. On metal pistols remove the grips and lay it under a hot desk lamp for 30 minutes.
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Post by Misfit on May 16, 2004 11:54:26 GMT -5
DA, in your experience, how many rounds will a typical recoil spring last before requiring replacement?
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Post by "DoubleAction" on May 16, 2004 14:45:31 GMT -5
Misfit; This all depends on the barrel lengths, ammunition, condition of the shok buffs after each session, and the impact of the slide with each shot fired. I have had some new recoil springs perform well with some ammo, but hammered the frame with other ammunition.
For the shorter 3 1/2" Officer's length barrel, and 22 to 24 lb spring, I replace those at around 500 rds.
For the 4 1/4 " Commander Length Barrel, and the 20 lb. spring, I replace those between 700 and 1,000. rds.
For the Full length 5", and the 18 1/2 lb. spring, I replace those after 1,000. rds., but mostly when I feel the frame being hammered and a badly worn shock buff after a 300 rd. session.
Those are my minimum recoil spring replacement requirements for a variety of different loads in the .45 acp. I can tell by shooting a pistol if the slide is hammering the frame upon recoil impact, it is usually then that I make a mental note to replace the spring when cleaning.
When ordering new springs, I order at least two.
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