Since it's recoil operated, it's probably not as bad as the desert eagle.
Quite he opposite. Both the AMT Automag V and LAR Grizzly Mk V belt harder than the Eagle.
The Desert Eagle truly does tame the round very effectively. Muzzle energy from a 6" DE and a 7.5" .454 Casull with top loads in either is nearly identical, and believe me, one can shooot the Eagle comfortably a whole lot longer.
And I know someone will badger me saying the Casull is more potent:
.50 AE, 325 gr. JHP, 27.5 grs. AA#7: 1,510 FPS, 1,646 ft/lbs
.454 Casull, 300 gr. JHP, 31.0 grs. H-110: 1,580 FPS, 1,663 ft/lbs
Loads that show the Casull Running 1,800+ ft/lbs are typically done from a 10" TC Contender.