Hey everyone!
Some of us have been digging into the Bofors 40 mm Automatic Gun L/70 ammo across different nations in-game, and I’ve noticed a bunch of inconsistencies. After comparing stats and plotting the data, it’s clear that some of the ammo doesn’t line up with how the L/70 was standardized in real life.
I want to point out what seems off and get the community’s help in gathering better info—this could really improve both realism and balance in-game.
Affected Vehicles
Ground Vehicles:
- USA: Sgt. York M247
- Italy: Leopard 40/70
- France: AMX-13 DCA 40
- Sweden: Lvkv 42, VEAK 40
Naval:
- Germany: Jaguar, Köln, Hugin, Pfeil, Schütze, Lübeck
- Italy: Saetta P-494, Albatros, Alcione, Freccia P-493, Baleno MC-492
Disclaimer:
This Post doesn’t cover the CV-90 Akan m/70 or any late 1990s–2000s upgrade including the L/70 Mark III. These fall outside the era of the ammunition used in this post.
1. Issue
Currently, all 40 mm belts are just listed by category, not by actual round designation. That leaves us guessing which real-world shell each stat is supposed to represent.
Detailed In-Game Values: Performance Chart. (Here)
Swedish 40mm Bofors L/70 (Designated “Lvakan 48” In-Service for Sweden)
Edit: Lvakan 48 is known to be incorrect an Bug reported(Here) is currently suggested to the developers as a “Historical error”
French 40mm Bofors L/70 (French License production designated “40mm Mle51 T1”)
Note: The values for this SPAA seems to line-up with Real life Statistics.
Italy 40mm Bofors L/70 (Italian License production designated “Breda-Bofors 40mm L/70”)
Note: Its strange these rounds share the exact same stats (Aside from Explosive filler & Armour piercing capability) Despite being different ammunition types, and could be potentially incorrect.
USA 40mm Bofors L/70 (American License production designated “40mm M226”)
Note: Its strange that all rounds are performing exactly equally to each other. There could definetly be a potential error involved.
I’m aware that naval and army L/70 ammo aren’t identical, but I don’t have a solution for that yet. If anyone has an idea, it would be a huge help. But aside from that issue, even fixing a single set of L/70 guns seems to take forever. Take the Lvakan 48 Using Wrong Ammunition bug in War Thunder—it’s been reported since 2020~ in different stages and still hasn’t been fixed.
1.1 Possible Solutions
We basically have two ways to approach this, but both come with trade-offs:
A: Rebuild every shell with accurate, sourced stats
- Pros:
- Most historically accurate solution
- Each vehicle gets ammo that truly reflects real-world performance
- Cons:
- Extremely time-consuming to research and implement
- Could take years to complete for all vehicles
- High risk of inconsistencies if sources conflict or aren’t clear
B: Introduce one standardized ammo set
- Pros:
- Much faster to implement
- Immediately improves consistency and gameplay balance across all L/70 guns
- Easier for players to understand what to expect from each gun
- Cons:
- Less historically precise—some vehicles won’t match the real-world ammo they actually used
- Naval and army guns might behave the same even if their real-world ammo differed
3. Currently Documented Ammunition. (IRL performance)
IRL Ammunition (here)
Oerlikon (Swiss)
High-Explosive (HE)
| Name | Explosive-Filler | Velocity (m/s) | Notes |
|---|---|---|---|
| 40mm SSB/K (HE-I) | 140 g HEXAL 30 | 1000–1005 | HE Incendiary |
| 40mm SSBL/K (HE-I-T) | 140 g HEXAL 30 (Tracer -18 g) | 1000–1005 | HE-I Tracer |
Armour-Piercing (AP)
| Name | Explosive-Filler | Velocity (m/s) | Notes |
|---|---|---|---|
| 40mm PKLH (APBCHC-T) | None | 1120 | AP Ballistic-Capped Hard-Core Tracer |
| 40mm PSBLH/B (APHE-I) | 52 g. HEXAL 30 | ~1000 | AP High-Explosive Incendiary |
| 40mm PLH (AP-T) | None | ~1000 | AP Tracer |
Penetration (AP) (100m)
| Round | 90° | 80° | 70° | 60° | 50° | 40° | 30° | 20° |
|---|---|---|---|---|---|---|---|---|
| PKLH | 98 | 95 | 89 | 80 | 70 | 58 | 45 | N/A |
| PSBLH/B | 58 | 55 | 52 | 49 | 44 | 40 | 35 | 30 |
| PLH | 60 | 59 | 58 | 55 | 53 | 50 | 45 | 40 |
DIEHL (Ger)
| Name | Filler | Velocity | Notes |
|---|---|---|---|
| DM81 A2 (HEI-T) | N/A | N/A | HE-I Tracer |
| DM31 A3 (HEI-T) | N/A | N/A | HE-I Tracer |
| DM68 | N/A | N/A | Training round |
Bofors AB (Swe)
High-Explosive (HE-T)
| Name | Propellant | Mass | Projectile | Filler | Velocity (m/s) | Round Weight |
|---|---|---|---|---|---|---|
| slsgr m/483 | Nc 105411,2 | 500 g | 965 g | 110 g Trotyl | 980–1010 | 2520 g |
| slsgr m/484 | Nc 105411,2 | 500 g | 983 g | 110 g Hexotonal | 980–1010 | 2520 g |
Armour-Piercing (APDS-T)
| Name | Propellant Mass | Projectile Mass | Core | Velocity | Round Weight |
|---|---|---|---|---|---|
| Slrppj m/49 | 480–500 g | 705 g | 24 mm | 1200 | 2250 g |
Penetration (AP) (100m)
| Round | 90° | 80° | 70° | 60° | 50° | 40° | 30° | 20° |
|---|---|---|---|---|---|---|---|---|
| Slrppj m/49 | 120 | N/A | N/A | N/A | N/A | N/A | 40 | N/A |
Any information to add? Comment use this formula below:
Nation/Company:
Round Type:
Specs:
Source:Then Ping “karnitin75”(Author of post) So i can see it and look at it and determine if its relevant and can be added to the right section.
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4. Sources:
5. Polls:
- A
- B
- Other (Comment)
- None. Leave it as it is
