What does change is the method and amount of lubrication they receive and retain, and the amount of fouling accumulating while firing. The frame and slide fit and the clearances between barrel and bushing ID are constants, they don’t change session to session. By setting things up consistently, we can help the pistol be more “predictable” in its ejection pattern.įirst, the “hard” parts - the frame, slide, barrel and bushing, and of course the ejector itself. In order to optimize the way a pistol evacuates its waste products, we need to break down the components and functions into hard and soft parts. So - what’s so complicated about this? Plenty.īrass marking illustrates the need for an adjustment. Hopefully reunited with its former magazine mates, precisely located, being neither directly underfoot, fused into your forehead or in the next county. Ideally, it’s near this point where the fired case clears the barrel, remains under the control of the extractor, striking the face of the ejector, where it’s kicked from the extractor’s grasp through the ejection port, landing in a small pile. Now the extractor is pulling the fired and expanded case from the chamber, itself a resistance to the slide’s rearward travel. It’s resisted by the recoil spring, must overcome the mainspring and begin to cock the hammer and it encounters friction caused by contact with the other components (slide/frame rails, barrel, bushing, etc.).Īs the pistol unlocks, the rear of the barrel swings down and rearward on the link, resting on the frame’s barrel bed, and against the frame’s recoil bearing surface, called the vertical impact surface. The slide begins to overcome three things. After firing, your slide starts moving rearward - this phase is called unlocking. First, let’s get an understanding of all the things happening as a pistol runs. Can you tune your ejector to reliably eject your empties into a certain area? Maybe.
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