Because they operate at less than half the velocity levels. Incorporate minute powder charges. Further,most guys figure them to be largely inaccurate anyhow. A new pistol barrel is generally under $100.
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<br>A good custom barrel installation costs as much as many pistols. They can provide EXTREME accuracy and barrel care weighs heavily on accuracy potential and barrel life.
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<br>Nobody breaks in a slingshot either.(grin)............
