They make the CJ in a 44 Mag model, so I figured the hotter 45 Colts may work. But without knowing for sure, it's best to stick with standard loads.
Agreed. The frame may be the same, but the larger bore means thinner cylinder walls and more surface area for chamber pressure to act on. The 5 shot capacity puts the locking groove better spot, (44 is 6 shot), but I still wouldn't bet my fingers on it.