- Yes
- No
I would like to suggest the 2 cm Minengeschoss X (or short MX) in both tracer and tracerless variant for 2 cm Flaks, such as 2 cm Flak 38 L/65 and 2 cm Flakvierling 38 L/65 as well as possible future 2 cm Flak 30 L/65.
It was a latewar further development on the 2 cm Minengeschoss, to further increase capacity, the bottom was extended, increasing the capacity from 18g HA 41 to 24/25g HA 41. With a weight of “just” 104g it also recived a velocity increase when fired from the Flaks compared to the standart HE ammo types of 120g.
It was used and intended in the 20x82mm and 20x138mmB Rheinmetall ammo for the 2 cm Mg 151/20 and 2 cm Flaks. While overall it didnt go into frontline service a certain amount was build for tests. Similar extended length Minengeschoss X was also tried for 30mm guns with 420g, however it also did not see frontline service. Further it was also intended with a velocity of 1000m/s in the Mg 213C and was overall intended to replace the normal Minengeschoss. (Some barrle detonations were encountered in the 2 cm Flaks, as well as some instability duo to length and ballancing, which could also be conected to experimental barrles with different progressive twist in rifleing.) The extended bottom would have also made more effective 2 componment HE and Incendary rounds with greater effect from both, unlike the normal Brandsprenggranate of the Mk 108, where for greatly increased Incendary effect the HE filler was decreased to around 40g.
In game it would offer an extreme improvement over the Brsprgr. L’Spur (HEFI-T) currently only available.
This grenade (is in game wrong) has IRL 120g 6,6g HTA (or H.5 and aluminium) (or if the normal Sprgr. L’Spur 6,2g PENT) and a velocity of 900m/s. Overall there were 5 different HE rounds, standart HEF-T, HEFI-T, HEFI-T short tracer, HEFI and HEF with the last 3 having 11g PENT to 19 and 20g H.5 and Zink filler. Which overall would also offer an improvement from model to model, however the MX round would be the pinnacle of development, offering greatly increased filler and velocity at slightly decreased ballistics. However the same flight time of 1.78 sec for 1000m was retained.
The Minengeschoss X (MX) however would massively increase the filler to 24/25g HA 41 (with great x1,6 TnTa) (to 38,3 and 40g TnTa) as well as increase the velocity to 950m/s, similar to the Japanese 20 mm AA guns.
This round would be very effective against airtargets every size from biplane to bomber as well as potentially strong against unarmored targets as well as potentially armored targets with hits in close proximity to crew via pressure damage.
Production examples found are by DWM and the drawing Nr. D20LF1B4S1 beeing dated 17.11.1943.
Stats and pictures:
20mm M-Gesch. X L'Spur m.Zerl HEFI-T (m) Sd. 0,109g 24g HA 41 (38,4g TnTa) 950m/s
Source:
Handbuch der Flugzeugbordwaffenmunition 1936-1945
Visit to Mauser Werke AG 2/24
Collezionisti e Studiosi Italiani Munizioni 20x138mm Rheinmetall
The Crowood Press History of Automatic Cannons
