When grinding the Panzerhaubitze 2000 in War Thunder, you'll quickly realize that choosing the right projectile decides whether you wipe out an enemy column or waste precious seconds reloading. The core debate between the M107 shell and the OE F3 shell comes down to explosive mass, muzzle velocity, and how you choose to engage targets across various map layouts.
The M107 shell serves as the default high-explosive option, carrying a massive explosive filler equivalent to roughly 9.1 kg of TNT despite a lower base projectile mass of around 7 kg. Meanwhile, the 155 mm OE F3 shell is unlocked deeper into the modification tree, trading a slightly different ballistic profile and 9 kg of TNT filler for higher baseline velocity or distinct handling characteristics depending on recent game updates and vehicle tiering. Understanding how these parameters interact with Gaijin Entertainment's physics engine helps you maximize damage output and secure clean kills.
Technical Specifications and Ballistic Profiles
At first glance, both projectiles share the same 155 mm caliber belonging to the PzH 2000's L52 barrel, but their in-game performance numbers create distinct playstyles.
- M107 Shell: Historically featured varied muzzle velocities depending on balancing patches, but typically offers a massive explosive equivalent payload. It excels at overpressure mechanics against lightly armored vehicles and roof-hits on main battle tanks.
- OE F3 Shell: Designed as an alternative high-explosive round that often provides superior muzzle velocity, flattening your ballistic arc at long distances and reducing travel time for snap shots.
Because muzzle velocity dictates how much lead you need on moving targets, switching between them changes your muscle memory. If you're lobbing shells over hills on maps like Mozdok or Fields of Poland, a flatter trajectory reduces the guesswork required for distant cross-map fire. Experts at Bloomberg have also weighed in on this matter.
Overpressure Mechanics and Damage Output
War Thunder's overpressure mechanic means that high-explosive shells with massive TNT equivalents don't need to pierce thick composite armor to secure a kill. They rely on concussive force transferring through thin roof plates, optics, or cupolas.
The M107 shines when you catch an enemy main battle tank out in the open or behind low cover. Dropping a 155 mm HE shell onto the engine deck or turret roof triggers catastrophic overpressure, wiping out crew members instantly. However, if your shell lands too far away, the volumetric armor calculations can absorb the blast.
The OE F3 shell manages energy transfer differently. Thanks to its altered velocity and mass profile, it maintains a high explosive charge that shreds light vehicles, anti-aircraft systems, and spall liners with consistent lethality. Players tracking stats on the War Thunder Wiki note that shell choice often depends on whether you prefer proxy-fuzed variants or pure velocity for direct structural impacts.
Tactical Scenarios: When to Use Each Shell
Selecting the wrong projectile in a heated match leads to missed opportunities. Match your ammunition choice to the immediate combat situation using these guidelines:
- Long-Range Counter-Sniper Fire: Use the high-velocity option when targeting enemies positioned across massive open maps. The reduced travel time ensures they can't easily back into cover before the shell arrives.
- Urban Overpressure Brawls: When peeking corners in tight city maps like Cargo Port or Alaska, rely on shell mass and quick reaction times over extreme ballistics.
- Handling Light Flankers: Both shells easily overpressure light scouting vehicles like the Wiesel or BMP series, but a faster shell reduces the chance of missing a fast-moving target crossing your sights.
Common Mistakes to Avoid
Many commanders fall into predictable traps when playing self-propelled howitzers in high-tier matches.
- Ignoring Shell Velocity Differences: Swapping between shells mid-match without adjusting your sight distance or aim leads to wild overshoots or undershoots. Stick to one primary round for standard engagements.
- Relying Solely on Direct Hits: These 155 mm platforms aren't traditional armor-piercing kinetic vehicles. Aim for weak structural points, turret roofs, or the ground directly beneath lightly armored opponents to leverage overpressure.
- Failing to Clear First-Order Ammo Racks: Carrying too many rounds increases your internal ammunition rack vulnerability. Balance your loadout so you stay stocked without turning your entire chassis into a floating powder keg.
Frequently Asked Questions
Which shell has a faster muzzle velocity in game?
The OE F3 generally provides a flatter trajectory and higher velocity compared to stock low-velocity variants, though recent balance patches have streamlined several 155 mm shell speeds. Always check your specific modification card before deploying.
Can the M107 penetrate heavy tank frontal armor?
No. Neither shell relies on kinetic penetration against heavy composite or thick frontal plates. They rely entirely on high-explosive overpressure striking weak roof armor, engine decks, or dispatching light targets through blast concussions.
Is the proxy-fuzed variant better than standard HE?
The M107 (PF) variant includes a proximity fuze, making it exceptionally useful for swatting low-flying helicopters or light aircraft attempting to rocket your position, whereas standard HE is optimized purely for ground targets.
How does barrel length affect these 155 mm rounds?
The PzH 2000 features a long L52 barrel, which naturally gives its projectiles higher baseline velocities than short-barreled contemporaries like the M109, making long-range shell drop much more manageable once you master the ballistics.
