The 6 Best Self-Propelled Howitzers of 2026, Ranked
RCH 155 leads our self-propelled howitzer ranking at 700 km range on a 42-tonne chassis, beating heavier legacy systems like the M109A7.
Via Wikipedia, RCH 155 (shown for identification)
Germany’s RCH 155 tops this ranking of six self-propelled howitzers at 700 km of maximum published range, carried on a 42,000 kg wheeled chassis that undercuts most of the tracked competition on weight. That’s the headline number, and it’s worth sitting with before the caveats, because it also drives home how much these six systems differ in basic design philosophy. Some are conventional tracked platforms carrying decades of combat lineage, like the M109A7. Others, like CAESAR, bet everything on a wheeled chassis to cut weight and cost. The RCH 155 tries to have it both ways: a fully automated turret bolted to a wheeled truck body. The ranking below is built strictly on two published figures, maximum range and combat weight, and the order changes if you weight those two variables differently, or add a third that isn’t in this table at all: price.
What does “maximum range” actually mean here?
Before the ranking, a methodology note that matters more than any single row in the table. The range figures below are each manufacturer’s or state’s published maximum range using that system’s best available rocket-assisted or extended-range projectile, not a standard high-explosive shell fired at the same charge. Ammunition families differ by country and by program, so a Polish extended-range round and a German one aren’t guaranteed to be built to the same performance envelope or independently verified by a common test authority. Treat every number in this table as a claim about best-case performance under ideal ammunition, not a floor you can expect in every scenario. A standard-shell comparison across these six systems would very likely show a tighter, more comparable spread, typically in the 30 to 40 km band rather than the 300 to 700 km spread you see here.
The ranking, side by side
| Rank | System | Country | Max range | Combat weight |
|---|---|---|---|---|
| 1 | RCH 155 | Germany | 700 km | 42,000 kg |
| 2 | CAESAR | France | 600 km | 17,700 kg |
| 3 | AHS Krab | Poland | 500 km | 48,000 kg |
| 4 | PzH 2000 | Germany | 420 km | 55,300 kg |
| 5 | K9 Thunder | South Korea | 360 km | 47,000 kg |
| 6 | M109A7 Paladin | United States | 300 km | 40,590 kg |
Why does the RCH 155 lead the ranking?
The RCH 155 combines the highest published maximum range on this list with a mid-pack combat weight, 42,000 kg, lighter than three of the five tracked systems it beats. That combination, range plus a wheeled chassis under the tracked competitors’ weight, is the core of its pitch: an automated, unmanned turret mounted on a Boxer wheeled base, aimed at faster road mobility and reduced crew exposure compared to a traditional tracked self-propelled gun. Whether 700 km holds up as a genuinely fielded, ammunition-available capability rather than a demonstrated ceiling is a fair question for a system still relatively early in its service life, and worth checking against updated figures as more units enter service.
Why does CAESAR punch so far above its weight?
CAESAR is the outlier on this list in the most literal sense: 600 km of published range, second only to the RCH 155, on a combat weight of just 17,700 kg. That’s roughly a third of the AHS Krab’s weight and less than half of the PzH 2000’s, and it’s not a rounding error, it’s a completely different design philosophy. CAESAR forgoes tracks and armor protection almost entirely, building a 155mm gun onto a wheeled truck chassis instead. The tradeoff is obvious: less crew protection than a fully armored tracked platform. But the payoff is just as real. A 17.7-tonne wheeled gun can self-deploy on a road network at speeds no tracked howitzer can match, fits on transport aircraft that a 55-tonne PzH 2000 can’t, and needs far less specialized bridging and recovery equipment in the field. For an army whose priority is rapid, long-range strategic and tactical mobility rather than maximum battlefield survivability, that weight gap is arguably a bigger story than the range number itself.
Does the heaviest system on this list, the PzH 2000, still make the case for armor and weight?
The PzH 2000, at 55,300 kg, is the heaviest system in this group by a clear margin, and it pairs that weight with the second-lowest published range on the list at 420 km. That’s a real tradeoff: heavier armor and a fully tracked chassis built for direct battlefield survivability, at the cost of both range and mobility versus lighter systems. It’s a reminder that weight buys something specific, protection and cross-country mobility on contested ground, and that a straight range-and-weight ranking will always undersell a system built around a different set of priorities than long-range reach.
Where does the M109A7 fit if it ranks last?
The M109A7 Paladin ranks sixth here on published maximum range, 300 km, the lowest figure in this group, on a combat weight of 40,590 kg, actually lighter than the RCH 155 that ranks first. That’s the clearest illustration in this whole list of why a two-variable ranking is a starting point, not a verdict. The M109A7 sits on one of the largest and longest-sustained self-propelled howitzer fleets in the world, with a US production and logistics base that none of the other five systems can match. An army already operating M109 variants, with parts, training pipelines, and maintenance infrastructure already in place, faces a completely different cost-benefit calculation on a “better range elsewhere” argument than an army starting from zero. Rank order on a spec sheet and rank order on a real procurement decision are two different exercises.
The bottom line
On published maximum range, the RCH 155 leads this list at 700 km, CAESAR is the mobility story at 600 km on a third of the weight of its tracked rivals, and the M109A7 anchors the bottom on range while sitting on the deepest production base of the six. None of that settles which system is right for a given army, because range and weight are only two variables out of many that matter: price, ammunition logistics, existing fleet compatibility, and crew protection all belong in the same conversation. Run these six systems and others head-to-head in the WeaponSpecs compare tool, browse the full artillery category to see how towed and rocket systems stack up against these self-propelled guns, or use the Advisor to weigh the tradeoffs against your own requirements. For more rankings and spec breakdowns like this one, see the WeaponSpecs articles section.
Systems in this comparison
Every system covered above, with its photo and, where available, a video. Tap a card to open the full spec sheet.
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Frequently asked questions
What is the best self-propelled howitzer in 2026? +
By published maximum range on a rocket-assisted round, Germany's RCH 155 ranks first at 700 km on a 42,000 kg wheeled chassis. Rank isn't the same as best fit for every army, though, CAESAR's mobility profile or the M109A7's production base may matter more depending on the buyer.
Why does CAESAR rank so high despite being lighter than every tracked system on this list? +
CAESAR reaches 600 km on a 17,700 kg wheeled truck chassis, roughly a third to a half the weight of the tracked systems on this list. Lower weight means cheaper transport, faster road marches, and a smaller logistics footprint, a real deployability advantage that a range number alone doesn't capture.
Are these howitzer range figures directly comparable? +
Not on a like-for-like basis. Each maximum range is the manufacturer's published figure for that system's best available rocket-assisted or extended-range projectile, and ammunition families differ by country. A standard high-explosive shell would show a much smaller and more comparable spread across all six systems.
Why does combat weight matter for a self-propelled howitzer? +
Weight drives bridge classification, rail and road transport limits, strategic airlift options, and terrain access. The PzH 2000 and AHS Krab, both over 45,000 kg, need heavier transporters and stronger bridges than the M109A7 or CAESAR, a constraint that matters as much as range once a unit has to actually move.
Is the M109A7 obsolete compared to newer systems on this list? +
No. It ranks last on this list's published rocket-assisted range figure, but it sits on a deep, decades-long US production and sustainment base with a large existing fleet. Range is one variable among several, and an army already operating M109 variants faces a very different replacement calculus than one starting fresh.
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