I'm not sure if you're looking at the original Nomad or the newer 3d printed Nomad XC's. Its 0.5" longer for DT vs DT. For an extra 0.5" if it outperformed the Magnus S, which according to TBAC's Summit it did, I'd take that additional performance any day..I had to double check the specs on the nomad. Looks like configured similarly (flat end caps and DT) it’s ~1” longer and ~1oz heavier. The scythe has end caps for different calibers too, albeit from aftermarket companies.
I haven’t shot the nomad, but based on volume and previous editions I bet it is quieter (volume is still king). For a hunting can folks may appreciate a bit shorter/lighter (albeit marginal).