About this rifle barrel
Proof Research 101070 Bolt Action Barrel Blank 243 Cal 28" M24 Contour 1:7.50" Twist 4 Grooves, Stainless is a rifle barrel for bolt-action rifles, 28 in, 1:7.50 in twist.
Check the gas system length, muzzle threads and profile against your handguard and gas block. The twist rate tells you which bullet weights the barrel is happiest with; 1:7 and 1:8 handle heavy bullets, 1:9 and slower favor light ones.
Manufacturer details
Your bolt-action barrel will arrive ready for thread and chamber by your gunsmith.
When PROOF Research joined with Lawrence Barrels in 2012, they acquired 15 years of experience in manufacturing precision steel barrels. PROOF now manufactures stainless steel barrels 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.
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.
416R arrives at the factory in long lengths and is then cut to finished barrel length. The barrels are then drilled, contoured and reamed to the bore diameter of the cartridge for which they are to be chambered. The barrels are then rifled, hand lapped and individually inspected with a bore scope.
Features
- 416R is the material of choice because it has the following characteristics:
Specifications
- Brand: Proof Research
- Fits: Bolt Rifles
- Length: 28 in
- Twist: 1:7.50 in
- Barrel Type: Blank
- Finish: Stainless
- Bore Type: Rifled
- Barrel Features: M24 Contour
- Manufacturer Part #: 101070
- UPC: 843068101070
Buying from WBT Guns
- Delivery: Ships to your door anywhere in the United States, or pick it up free at our La Mesa store.
- Payment: Pay in full or finance with Credova.
- Questions: Fitment or compatibility questions? Call (619) 667-9453 or email sales@wbtguns.com. FAQ
WBT Guns is family-owned in La Mesa, California, and has served shooters since 2012.
A note on accuracy. Specifications, fitment and images come from the manufacturer and can contain errors or change without notice. If a detail matters to your purchase, call us and we will confirm it before you order. Any compliance notes are general information, not legal advice; California and local laws change, and the rules that apply depend on the firearm the part goes on.
