Proof Research® Ruger Precision™ Steel Blanks - Gunsmith Ready

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These stainless steel cut-rifled barrels are made in-house with an absolute commitment to extreme accuracy and quality. They start with double stress-relieved 416R stainless steel, a pre-hardened chromium stainless steel ideally suited for use in precision, match-grade rifle barrels. 416R was specifically designed by engineers in collaboration with barrel makers and rifle manufacturers to provide the consistency, high quality and durability the firearms industry demands.


These barrels are gunsmith ready, meaning that the the barrel is threaded for the receiver but needs to be chambered in the desired cartridge by a qualified gunsmith.

SKU: PR-RPR-BL
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Sale: $329.99

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.243 (6mm) 8 Twist
.264 (6.5mm) 8 Twist
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Proof Research

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When PROOF Research® joined with Lawrence Barrels in 2012 they acquired 15 years of experience in manufacturing precision steel barrels. These stainless steel barrels are made in-house with an absolute commitment to extreme accuracy and quality. They start with double stress-relieved 416R stainless steel, a pre-hardened chromium stainless steel ideally suited for use in precision, match-grade rifle barrels. 416R was specifically designed by engineers in collaboration with barrel makers and rifle manufacturers to provide the consistency, high quality and durability the firearms industry demands.

416R is our stainless steel of choice because it has the following characteristics:

  • Excellent machinability for gun drilling and reaming, plus exceptional polishability for uniform lapping—a must for bore accuracy.
  • A homogeneous microstructure which responds to heat treatment providing a uniform hardness along the length of the bar, necessary for accurate rifling to precise groove dimensions.
  • An optimum combination of high tensile strength along with adequate toughness to withstand typical chamber pressures encountered during firing.

PROOF 416R arrives at your door threaded at the receiver, but need to chambered for the desired cartridge and cut down to desired length.The barrels are then drilled, contoured and reamed to the bore diameter of the cartridge for which they are to be chambered. Every barrel is then cut rifled, hand lapped and inspected with a bore scope for superior quality and consistency.

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Brand Proof Research

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