Long-range strike · U.S. Army

PrSM

Precision Strike Missile

The Army's new 500+ km ballistic missile, replacing ATACMS. Deliveries only began in 2023, so the stockpile was small going in.

Launched from: HIMARS and MLRS rocket launchers · ~$1.6M each

Estimated leftCritically low

20–50

22–56% of ~90 before the war · as of Apr 8, 2026

At the opening campaign's pace (~1/day) that's 14–35 days of fire with no resupply.

EstimateCSIS, Apr 21, 2026(prewar minus reported use)

Newer reporting not in the headline

two sources with direct knowledge (CBS News), Aug 4, 2026 Reported

“Specifically, the U.S. has used virtually all of its Army Tactical Missile Systems, known as ATACMS, and Precision Strike Missiles, the sources said.”

via CBS News, Aug 4, 2026

CSIS, Jul 31, 2026 Estimate

“The United States has used about half of the initial inventory for three of these munitions (Patriot, THAAD, and PrSM)”

via CSIS, Jul 31, 2026

CSIS, May 27, 2026 Estimate

“Accordingly, use has been limited—though highly effective—and replacing expenditures will take only a few months.”

via CSIS, May 27, 2026

These can't be turned into a count on the same baseline as the headline (a percentage of an undisclosed total, or no number at all), so they're shown here rather than mixed in.

In blocks of 10

PrSM20–50 of ~90

left within the estimate's range used since Feb 28

Rebuild model

How fast does the stockpile come back? This projects it forward from the deliveries already in the pipeline and the FY2027 rebuild order, using the budget's own schedules. Move the sliders to test faster production or a renewed war.

Published estimates Projection Low–high range Prewar level

Starts from the newest estimate (Apr 8, 2026) and assumes no firing after it unless you add a renewed war. Fighting has continued at lower intensity since July 8, so treat projections from older estimates as optimistic. The default firing rate is the opening campaign's average: ~1 a day over 39 days.

Table view

Date	Low estimate	High estimate

Every estimate

As of	Claim	Source	Type
Aug 4, 2026	Statement Per two sources with direct knowledge (CBS News) Quote “Specifically, the U.S. has used virtually all of its Army Tactical Missile Systems, known as ATACMS, and Precision Strike Missiles, the sources said.”	CBS News Aug 4, 2026	Reported
Jul 31, 2026	Statement Quote “The United States has used about half of the initial inventory for three of these munitions (Patriot, THAAD, and PrSM)”	CSIS Jul 31, 2026	Estimate
May 27, 2026	Statement Quote “Accordingly, use has been limited—though highly effective—and replacing expenditures will take only a few months.”	CSIS May 27, 2026	Estimate
Apr 8, 2026	40–70 used Quote “PrSM $1.6 90 40–70 46” Table 1 row.	CSIS Apr 21, 2026	Estimate
Apr 8, 2026	Statement Per an unnamed Army official Quote “An Army official reportedly shared that the “entire inventory of PrSM” had been expended in the Iran war, though other officials maintain some remain in the inventory.”	CSIS Apr 21, 2026	Reported
Feb 28, 2026	~90 before the war Quote “PrSM $1.6 90 40–70 46” Table 1 row.	CSIS Apr 21, 2026	Estimate

Model inputs

Input	Value	Source
Unit cost	$1.6M	CSIS, Apr 21, 2026 Quote “PrSM $1.6 90 40–70 46”
U.S. deliveries per year (recent average) Table 2: five-year average of U.S. procurement.	56	CSIS, Apr 21, 2026 Quote “PrSM 56 38 8 46”
Announced production capacity (all customers)	400/yr	CSIS, Apr 21, 2026 Quote “Lockheed Martin has been scaling up PrSM production, setting an annual target of 400 units last year”
Months to deliver a full lot Table 2: production time for a full lot.	8	CSIS, Apr 21, 2026 Quote “PrSM 56 38 8 46”
CSIS rebuild outlook	A few months	CSIS, May 27, 2026 Quote “replacing expenditures will take only a few months.”