Gun Report

Smith & Wesson Model 647 .17 HMR

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Fired single action, this model is one of the best rimfire revolvers we've seen yet, but the 647 is supposed to offer double-action fire as well, and cylinder-rotation problems hampered this feature.

Smith & Wesson Model 647 .17 HMR

Gun Details

Model Name
Model Number
Home Defense
Caliber Plus Cartridge
Weight Unloaded
Overall Length
Barrel Length
Sight Radius
Overall Height
Front Strap Height
Back Strap Height
Maximum Width
Grip Thickness Max
Grip Circumference Max
Frame Material
Barrel Material
Grip Material
Trigger Pull Single
Trigger Pull Double
Trigger Span Single
Trigger Span Double

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We thought the machine work on the Smith & Wesson 647, especially here on the recessed chambers and sculpted ejector star, was exceptional. But if the cause of the cylinder drag arose from rounds setting back from the chambers, there might have to be a change in design. We found that manually pulling back the hammer helped us minimize the problem of difficult cylinder rotation.
The long 8.4-inch barrel found on our Smith & Wesson 647 is the same one as those found on .38/357 models. After drilling the tiny bore, there is still plenty of weight left over to fight recoil.

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