>>64471260
>Isn't the rumor that XM1184 looks like an EPR round but with a tungsten arrowhead?
It's allegedly just XM1186 GP but with the steel EPR penetrator swapped for tungsten. This is identical to the relationship between M80A1 as the EPR and M1158 as the new AP.
>Maybe the Chinese want to cover their bases vs. other possible designs?
I think the new 6.8 bears a passing resemblance to 7N51, so I'm curious if Russia is allowing China to copy its notes from experiences in Ukraine. After all, 7N37 basically is a purpose-designed XSAPI-buster (and it does do that since it killed an Adept Colossus fine) and 7N51 moreso, so that's exactly the kind of intel China could use - especially if they need to up their own armor to account for western companies progressing to heavy-core counter-ceramic designs of their own. Rounds like AP 10, AP 11 LR, and DM151 all have larger cores than M993. Trading velocity is seemingly fine if it means better counter-ceramic performance.
>Longer bullet in lead sheath = 200gr? I can see that having good velocity retention and terminal performance with the lead sheath, I guess.
I think the idea is literally just 7N37 but increase the L/D ratio and sectional density. I'm seeing on some old wikis that Stiletto Systems had a 14-gram 7.62x54R AP called BS14, and that's 216gr. Could be 7N51 is just a copycat of that. It's worth noting that Stiletto loads their ammo exceptionally hot so 7N51 might be outperformed by this BS14.
I can see the need for Stiletto's real heavy shit given that "R-Carbide" heavyweight Granits can eat 7N37 (and thus, likely, Stiletto's older BS12 design). I'm curious as to which units are actually getting these 7N37 plates given the questionable percentage of quality armor on the Russian side.