The Proof Research bolt action barrel blank is 264 caliber with a 28-inch competition contour, a 1:7.5 twist and 4 grooves in stainless steel.
- Manufacturer Part # : 113721
- Type : Barrel Blank
- Bore : 264 Caliber
- Length : 28"
- Contour : Competition
- Grooves : 4
- Finish : Stainless
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