Re: Spring compression concerns.
One of the problems with leaving a magazine loaded (with any number of rounds) is electrolysis. Different metals in juxraposition create a very faint electrical current. I've seen magazines loaded for one day that have frozen from verdigris or corrosion forming on the jacket material and some as noted above loaded since time immemorial that have not frozen. If you live near salt water or in a highly humid climate, check more often.
Some things to remember:
ALWAYS slam the base of the loaded magazine against the palm of your hand before loading into a pistol. This jars the loaded rounds into position to feed freely.
Check your loaded magazines at regular intervals. When stripping cartridges from a loaded magazine, discard any cartridges that stick to the magazine walls or that hesitate before rising. These will usually have a slight green spot at the point of contact. Or, it could be a dark spot.
If you take the time to carefully disassemble your magazines and coat the inside walls with a good dry lube it helps to defeat this freezing up problem.
If you detect the effects of electrolysis, inspect and replace loaded cartridges 4 times a year minimum, or as often as it takes.
Check chambered cartridges for electrolysis effects. Clean and coat your barrel bore and chamber with a good dry lube. (This has been frowned on in the past, since some pistols open faster when the chamber is lubed. So, do this only if you have determined that the action stays locked until chamber pressures are under control for normal extraction.) This effect will be found to vary with different brands of cartridges or powders.
Many is the time, gents, when we cleaned and reloaded our pistols before we had chow or turned in for the night. Checking it is paying the premiums on your life insurance.
Proper lubrication is a contributing factor to reliability. If you never use oil, which is hygroscopic and migrates, but a high quality grease or dry lube you will be ahead by orders of magnitude.
Never, ever, oil a firing pin or a firing pin channel. It could cause a hydraulic lock. Always use dry lube in moderation. Don't let it cake up. Check it after firing.
Some recoil and magazine springs are not heat treated for longest life. Try them all, if you can, and settle for the ones that hold up longest. You can use a spring tester from Brownells or rig one from drill rod and a pull scale. Most shooters don't want to be bothered with this, but it is the most definitive indicator of the point where springs should be replaced. Keep a notebook of the readings for each pistol that you trust your life to.
A man who does not learn the lessons of history is condemned to repeat the mistakes of the past.
Last edited by Pistolsmith; 09-27-2004 at 07:26 PM..