Interesting, but there's a couple of things here that throw up red flags for me.
First is VPAM 3. This just tests a slightly spicy 9x19, roughly equivalent to the round used in IIA/HG1, but without the .357Mag. Seems like a step down from the IIIA we commonly see for aramid helmets.
They list the 80gr SCS shot at "carbine velocities", but don't actually list the velocity range, unlike what they do for 5.7x28 or 7.62x25. Curious. Not a major deal but concerning considering the consistency of numbers they released before.
This line: "With The NovaSteel™ Helmet, you can forget about replacing your helmet every five years." This is a common lie perpetuated by several steel manufacturers, particularly those of questionable ethics and quality. This is the biggest one to me.
Echoed here as well: "The functional lifespans of composite helmets are unknown, and for this reason they are typically sold with short warranty periods." Also bullshit, the aramid is sealed and good for just as long as steel as long as you aren't handling your gear like a retarded monkey.
They don't release ballistics testing data, stating that BFD is "minimal". Concerning as BFD on helmets is killer. They do list blunt impact protection, which is good, since there's lots of disreputable helmet manufacturers that don't or lie about it, so I'll give them points for that.
"As the steel helmet is not capable of significant deformation upon impact, thick pads are not required" -- part of the requirement of pads is to protect against BFD, sure, but the primary goal is to stop impact damage. The pads prevent the helmet itself from slamming into your noggin. Also concerning.
Nothing outright that slams them as a scam or hawker of shit armor, but there's enough here that I'd be cautious on. A lot of very wild claims made in the sales page.