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Smith & Wesson
Model 647
Smith & Wesson Revolver 647 .17 HMR Variant-1
Scale To:
Gun Dimensions Width:No Data
Length:13.5-in Height:No Data
Barrel:8.375-in Weight:52.5-oz
Variant 1 of 2
Gun Rankings
  • Power Factor (17 grain bullet)33609
  • Recoil Factor (17 grain bullet)0.15 ft-lb
  • Total Capacity6 rounds
  • ConcealabilityVery Poor
  • Defense Factor1%
Gun Specifications
Type:Revolver
Produced:2003 - 2004
Caliber:.17 HMR
Action:revolving chamber
Trigger:double-action (DA/SA)
Safety:no manual safety
Cylinder:6-round
Frame:stainless steel
Grip:Hogue rubber
Sights:pinned patridge front, adj. black rear
Notes:full lug barrel
Manufacturer
Smith & Wesson
More Info
Gun Value
MSRP:$697.00Used Est:$850.00
Last Update:2/3/2023
About the Gun

The 'K'-frame Model 647 was Smith & Wesson's only venture into .17 HMR caliber revolvers.

Cartridge Specifications
Cartridge: .17 HMR
Alias: .17 Hornady Magnum Rimfire
More Info
Ballistics for This Gun
Selected Bullet Mass:17 grains
MV:1977 ft/sec ME:148 ft-lbs
About the Cartridge

This cartridge is based on a .22 Magnum (WMR) rimfire case that is necked down to seat a 17 grain, .17 caliber Hornady V-Max bullet. As done with the .17 Mach 2, the .17 HMR is sized such that manufacturers can easily re-tool .22 WMR gun designs to the new .17 HMR cartridge. This is a supersonic varmint round that travels over twice the speed of sound with near flat trajectory to 100 yards. The larger cartridge and load gives the .17 HMR more than 1-1/2 times the energy at 100 yards than the smaller .17 Mach 2.

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