Once the vacuum is achieved, the barrels are heated to a temperature 50 degrees less than the original tempering at the mill, for two hours. This highly specialized process offers the most thorough stress relief available anywhere. Stress relieving the barrels after the rifling process is critical for the best in button rifled barrels. This results in a barrel that can be contoured, fluted, chambered and the other finishing process without warping. Stress relief can either be accomplished in our shop or out on the shooting range during a match or a long day of practice, we think it best to do it here.
Stress relief is a very specialized process.
To ensure quality, the stress relief for each barrel is done by Inland Northwest Metallurgical Services. The final stage is the hand lapping and inspection for shipment. Our barrels are lapped to a 400 grit finish in a multi-stage process. The resulting barrel has an exceptionally smooth finish and is free from the tool marks normally seen in barrels. The bottom line for us is that we use the highest quality process we know how to make the best barrels we can.