I have fired many & been around many 44 Magnum revolvers. Most I have dealt with have been SW, Ruger, & Colt. In all my years, I have never seen bulged cases with any of these revolvers.
Only exception is not a revolver, but the Desert Eagle.
IMHO with the high pressure and limited space in the cylinder of most 44 mags, I would seriously question the safety of this revolver or send it back.
Granted Rugers have heavy cylinders, I have never seen a Ruger bulge cases.