Hart Rifle Barrels are produced with the highest grade of stainless steel. Barrels are button rifled with six grooves and contoured on a CNC lathe, then hand lapped to ensure the best possible interior finish. Hart guarantees that the groove will not vary more than .0001" from breech to muzzle. Every barrel is measured with an air gauge and examined with a borescope to ensure that there are no tool marks or other defects, which might affect accuracy.
Material:Stainless Steel Production Process:
Button rifled with 6 grooves
Barrels are contoured and then hand lapped
Barrels are air gauged and borescope inspected
Groove is uniform within .0001" throughout its length
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