The Parts You Need To Rebuild An Old Tube
For most of the older .22’s that no longer have a factory replacement magazine tube, these 3 kits provide the parts needed to custom-make a magazine to fit. All tube blanks have a rolled crimp on one end only. Kit No. 3: Undersized .343" O.D. 17-15⁄16" long, centerless ground, brass tube with 24" spring, follower and long cap for Savage 29A tubes as well as some earlier Savage/Stevens.
Big Book Catalog, Issue:70, Page:176
SPEC: Brass tube, steel follower and spring.