.44 Magnum Chronograph Parabellum Research 240gr V-Supreme and 255gr Devastator

[Intercooler]

Ruger Redhawk 7.5" barrel PBR V-Supreme 240gr FMJ 1515, 1485, 1509, 1515, 1516, 1503. Average = 1507 FPS/ 1210 LBS. My favorite round other than the American Eagle due to cost.
Ruger Redhawk 7.5" barrel 255gr Cast 22.4gr's??? 1246, 1262, 1260, 1250, 1301, 1270. Average = 1264.83 FPS/ 905 LBS. Would be a good long session round.

[The_Shadow]

Those Lyman 255gr Cast Devastators were loaded with 22.4grains IMR4227 (1979 vintage).  Yes there was room for more...