[Johnny C. Kitchens]

The spring also has to overcome inertia. When you fire the gun, it rises due to recoil sharply, driving the column of ammo down. The weaker the magazine spring, the easier for the ammo column to go down. Another area of concern in the Luger magazine, is friction. It is estimated that nearly 60% of the spring power in the Luger magazine has to overcome friction, as a result of the angled feed. One cure for that, would be teflon coating. I have a 70's Mauser magazine teflon coated and it works great. My next magazine will be coated by Robar with NP3, a nickel-teflon coating, with a spring from GT. That should be about as good as I can get...