When PROOF Research joined with Lawrence Barrels in 2012 they acquired 15 years of experience in manufacturing precision steel barrels. Their 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 shipped ready to be chambered, fitted, threaded and crowned to any length up to 29" by a qualified gunsmith.
Barrel Twist Rates
6mm: 1:8" Twist
6.5mm: 1:8 Twist
.30 Cal: 1:10 Twist