The DX design was introduced by Smith as a reinforced 29. I think the detuning of the current factory 44 Mag ammo of today may have caused Smith to return to the original 29 design. If so, the Ruger only or Silhouette 44 Mag loads in some manuals should not be used in the regular 29s. The original 29 design will shoot loose with higher pressure loads, seen them come off the line in the middle of silhouette matches with barrels unscrewed and cylinders out of time, not locking up correctly, that is what I mean by shooting loose.
Last edited by Rapier; 01/30/24.