doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com Welding cracks in barrel tubes?

I believe the perpendicular defect is the original crease/dent



I've done an analysis of a c. 1912 Lefever Arms Co. DS “Dura Nitro Steel” and it was non-standard AISI 1035 with a measured tensile strength of 91,500 psi. Comparable to most of the c. 19teens - 30s U.S. double's fluid steel barrels.

This is a Model 12 Winchester Proof Steel barrel with a similar split; hard to tell from the pic but it also was probably where a dent was raised



Pressures at 15" with today's fast burning shotgun powders are about 1000 psi



Please let us know the wall thickness at that location