Example of poor quality barrels, workmanship, and final inspection.
You can look at almost every "New" Remington 700 factory rifle and the TIR may be off as much as .040. The necks may be out of SAAMI spec as much as .006. I have seen throats as much as .137 beyond a 2.808 COAL seating depth.
Every student who graduates from your gunsmithing program needs to be able to read test indicators. A wonderful test would be a having them examine a couple (brand new factory rifles) barrels and document the ID of the throat, neck, shoulder, and web area. Test for co-axial alignment and concentricity. And measure the headspace.
I was at a trade show last weekend and had a Remington employee come to my booth. At first he was very protective of his employers products. After about 5 minutes of conversation and showing him two factory original barrels that had thoat and co-axial and concentricity issues he conceeded that Remington had some issues and they extended beyond the prodct to the company management. These issues have been brought to the companys attention. There answer was to just replace the defective product. How can one trust them to fix something that should never have passed and inspection in the first place.
I have not even address the quality of the bore, and rifling. Your student should be able to inspect barrels for quality manufacture and workmanship.
I also have not address the quality of bolt lug and action abutment issues and or bolt timing issues.
I hope your students learn to read insturments, make quality products within SAAMI standards and have the work ethic to insure their customers get what they think they are paying for.
Nat Lambeth
