It is possible that both tubes have the Eagle "Crown" over "S" but I would guess that the solid projectile/rifled tube has a Eagle "Crown" over "G". That notes the tube has experienced a test of a triple powder charge based on the service load and a doubled load based on the service load. Pattern welded tubes are not the demons as found in hearsay. Obstructions are typically the culprits and I'd say the probability of having in an obstruction with a production cartridge in a pattern welded tube isn't any greater than that of a fluid steel tube. Blow the tubes after firing and pay attention to the sound of each ignition.
Kind Regards,
Raimey
rse
