Description
Proof Research 308 Win Accuracy International Pre-Fit Steel Barrel
The Proof Research 308 Win Accuracy International Pre-Fit Steel Barrel was designed for AXMC and AX308/AT/AW/AE SA rifle models. The 308 Win barrels are available in different lengths, twist rates, and breech thread. Proof makes their steel barrels in house with the exact same vow to quality and consistency as they put into the carbon fiber barrels. The drilling, rifling, and lapping process is identical to their composite barrels. They start with the same steel used in the carbon fiber barrels. It is a double stress relieved 416R stainless steel, a pre hardened chromium stainless steel that was specifically made by engineers in collaboration with rifle barrel makers to give the consistent, high quality and durability this industry demands.
Proof Research 308 Win Accuracy International Pre-Fit Steel Barrel
Excellent machinability for gun drilling and reaming, plus an exceptional finish for uniform lapping
A solid micro structure which responds to heat treatment providing a uniform hardness along the length of the barrel
A great combination of high tensile strength along with the toughness to withstand extreme chamber pressures that happens during each use
Excellent erosion wear characteristics and corrosion resistance
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