Yes, under the LKE I project that Rheinmetall led, DM43/OFL F1 was required to defeat Kontakt-5. The Germans, however, ended up dropping it in favor of the LKE II project, which had produced DM53, a much more potent projectile.
The ballistic tip is on top of the actual penetrator, and the defeat mechanism here is that the thinner tip, in theory, will limit the spread of force/energy over the ERA’s surface, thus fooling it into “thinking” it’s being struck by a 20- to 25-mm projectile.
Not to mention that it did poorly against duplet.
Duplet is also far more powerful than Kontakt-5 and much thicker, it has the power of a Gamma Ray Burst in its charge with how much energy & esplosives its storing;
This is from Cime Bocuze whom manufactured the penetrators for French APFSDS:
This would only be applicable if we’d have data on alloys they used to create that comparison. A more “alloyed” Tungsten matrix will perform worse against RHA (obviously, it’s less dense, weighs less, and carries less energy at both muzzle and on impact); a less alloyed Tungsten matrix (think WSM 4-1 of DM53) will perform much closer to DU as it has a similar enough density and thus weighs much more, but also travels at velocities high enough to trigger WHA’s very own adiabatic shearing, which in the end allows it to close the gap.
I’m also not sure of the accuracy of their graph, because Odermatt has one as well:
Where DU reaches its optimum velocity faster but begins to “drop” off after that, whereas Tungsten just continues the climb until it reaches 2 km/s velocity.
The difference between F2 (per Janes) and F1 (per WT) would be less than 20mm in the formers favor and mostly facilitated by the fact F1 is a bit faster (50 m/s to be precise, which for APFSDS is actually a huge difference).
Note: Odermatt has made use of the more accurate perforation measuring method, i.e., how much APFSDS made out of X material can realistically defeat; Bocuze has instead used the penetration method, which denotes that APFSDS has to completely erode in the process (KE rods are far more likely to run out of energy first than to be fully eroded by whatever they’re impacting).
@Bossman919