Quick Answer
Short Answer: When buying used rifled shotguns, inspect the barrel's rifling, check for wear on the action and stock, and test the firearm's function and accuracy.
Barrel Inspection
Inspect the barrel for any signs of excessive wear, such as pitting or corrosion, which can compromise the rifling and accuracy. Check the rifling itself by inserting a flashlight and looking into the barrel. The rifling should be well-defined and uniform, with no signs of damage or wear. Use a rifling gauge or a scope to measure the barrel’s twist rate and pitch, which should match the manufacturer’s specifications.
Action and Stock Inspection
Inspect the action for any signs of wear or damage, such as scratches, dents, or worn-out parts. Check the stock for any signs of damage, such as cracks, dents, or excessive wear on the grip or fore-end. Make sure the stock is properly fitted to the action and the receiver is securely attached. Check the trigger mechanism for proper function and adjustability.
Function and Accuracy Testing
Test the firearm’s function by firing several rounds to ensure it cycles properly and ejects cases. Check the accuracy by firing several groups at a target, using a consistent load and shooting position. Pay attention to any inconsistencies in the groups, such as uneven spreads or fliers. If the firearm is inaccurate or has other issues, it may be worth negotiating the price or walking away from the purchase.
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