Rich this 20" #6 Contour Barrel (Heavy) has a 1:9 Twist Rate.

1:9 twist Specifications and Features: Howa Heavy Barrel Varminter HGR70222+ Howa 1500 barreled Right hand Bolt Action Rifle .223 Remington 20" #6 Contour Barrel (Heavy) Threaded 5 Round Capacity Hogue Synthetic Stock (Pillar bedded) Hogue Recoil Pad Nikko Stirling Mount Master Adjustable Objective 3-9x40 Scope Two Piece scope base and rings Forged One piece bolt with two locking lugs Two Stage H.A.C.T Trigger Three Position Safety Sling Swivel Studs Length of Pull 13.87" Overall Length 40.25" Overall Weight 8.5lbs Matte Black

Hi Rich, this comes with a 20" #6 Contour Barrel (Heavy) and has a 1:9 Twist Rate. Howa 1500 barreled Right hand Bolt Action Rifle .223 Remington 20" #6 Contour Barrel (Heavy) Threaded -- 5 Round Capacity -- Hogue Synthetic Stock (Pillar bedded) -- Hogue Recoil Pad -- Nikko Stirling Mount -- Master Adjustable Objective 3-9x40 Scope -- Two Piece scope base and rings -- Forged One piece bolt with two locking lugs -- Two Stage H.A.C.T Trigger -- Three Position Safety -- Sling Swivel Studs -- Length of Pull 13.87" -- Overall Length 40.25" -- Overall Weight 8.5lbs -- Matte Black

1:9 twist Specifications and Features:
Howa Heavy Barrel Varminter HGR70222+
Howa 1500 barreled Right hand Bolt Action Rifle
.223 Remington
20" #6 Contour Barrel (Heavy)
Threaded
5 Round Capacity
Hogue Synthetic Stock (Pillar bedded)
Hogue Recoil Pad
Nikko Stirling Mount Master Adjustable Objective 3-9x40 Scope
Two Piece scope base and rings
Forged One piece bolt with two locking lugs
Two Stage H.A.C.T Trigger
Three Position Safety
Sling Swivel Studs
Length of Pull 13.87"
Overall Length 40.25"
Overall Weight 8.5lbs
Matte Black