9mm based Grendel?

[41bear]

if one is wanting to try some 9mm/358 very heavy bullets with the 350 Legend, you'll likely have to custom order a much faster twist barrel. If I recall, SAAMI is only 1-16". if you want to try 280-310 or more, at subsonic speeds, for instance, I would estimate a 10" twist might be required. The 350 Legend does indeed look, "interesting", but I'd pursue a much faster twist if my intent with the 350 Legend was Subsonic usages. Just mentioning is all.
-tdbru

Though you may be correct both Winchester and Hornady have heavy (250 gr.?) sub loads on the market just for the 350 Legend.