A Firehole Arms ReportHow we count

The 2026 Ammunition Supply Report

Data as of November 5, 2026 · Checked daily
Today, in one line

Across five calibers, thirty-seven listings are left . Thirty-seven.

A Manufacturer's Early Warning on the 2026 Ammunition Shortage · Last updated: October 2026

Executive summary

Section 1

Who we are and why this report exists

Section 2

How we measure

Section 3

What we are measuring

Tap a caliber for the full count. Every dot is one in the national catalog.

9mm FMJCritical

1.8%

Five of the 272 9mm listings we track are American-owned and stocked deep enough to reach store shelves.

To move up to Scarce, 9mm needs 15 American-owned listings at scale on today's catalog: ten more than today.

One dot per listing · 272 listings

9mm FMJ: American-owned and all-brand listings
ListingsAmericanAll brands
At scale (250+)518
Any stock2045
In catalog68272

All brands, for comparison: 6.6% True Market Presence™

What moved it

  • 9mm Luger moved from Scarce to Critical.
  • 9mm Luger moved from Critical to Scarce.
  • We now count only stock that distributors currently report and that can be confirmed, which raised the American-owned share slightly for 9mm Luger, .300 AAC Blackout and .45 ACP.
Report history for 9mm FMJ
DateAMP™RatingAmerican at scaleTMP™
Nov 5, 20261.8%Critical5 of 2726.6%
Oct 31, 20264.8%Scarce13 of 27211.8%
September 2026not measuredNot ratednot measured5.9%
True Market Presence™ introduced (methodology change). Before the Oct 5 correction, as published.
June 2026not measuredNot ratednot measured3–7%
Availability range, smaller distributor sample (not comparable with later rows).
May 2026not measuredNot ratednot measured7–12%
Availability range, smaller distributor sample (not comparable with later rows).

— Not measured at the time.

5.56 NATO FMJAdequate

23.4%

Fifteen of the 64 5.56 NATO listings we track are American-owned and stocked deep enough to reach store shelves.

One dot per listing · 64 listings

5.56 NATO FMJ: American-owned and all-brand listings
ListingsAmericanAll brands
At scale (250+)1526
Any stock1831
In catalog2564

All brands, for comparison: 40.6% True Market Presence™

What moved it

  • We now count frangible ammunition as ball, which moved 9mm Luger from Scarce to Critical.
  • 5.56 NATO moved from Limited to Adequate.
Report history for 5.56 NATO FMJ
DateAMP™RatingAmerican at scaleTMP™
Nov 5, 202623.4%Adequate15 of 6440.6%
Oct 31, 202628.1%Adequate18 of 6451.6%
September 2026not measuredNot ratednot measured12.8%
True Market Presence™ introduced (methodology change). Before the Oct 5 correction, as published.
June 2026not measuredNot ratednot measured14–22%
Availability range, smaller distributor sample (not comparable with later rows).
May 2026not measuredNot ratednot measured16–20%
Availability range, smaller distributor sample (not comparable with later rows).

— Not measured at the time.

300 BLK FMJLimited

13.2%

Nine of the 68 300 BLK listings we track are American-owned and stocked deep enough to reach store shelves.

To move up to Adequate, 300 BLK needs 14 American-owned listings at scale on today's catalog: five more than today.

One dot per listing · 68 listings

300 BLK FMJ: American-owned and all-brand listings
ListingsAmericanAll brands
At scale (250+)915
Any stock1124
In catalog2568

All brands, for comparison: 22.1% True Market Presence™

What moved it

  • We now count only stock that distributors currently report and that can be confirmed, which raised the American-owned share slightly for 9mm Luger, .300 AAC Blackout and .45 ACP.
  • .300 AAC Blackout moved from Scarce to Limited.
Report history for 300 BLK FMJ
DateAMP™RatingAmerican at scaleTMP™
Nov 5, 202613.2%Limited9 of 6822.1%
Oct 31, 202617.6%Limited12 of 6830.9%
September 2026not measuredNot ratednot measured7.9%
True Market Presence™ introduced (methodology change). Before the Oct 5 correction, as published.
June 2026not measuredNot ratednot measured0–20%
Availability range, smaller distributor sample (not comparable with later rows).
May 2026not measuredNot ratednot measured7–13%
Availability range, smaller distributor sample (not comparable with later rows).

— Not measured at the time.

.45 ACP FMJScarce

8.1%

Eight of the 99 .45 ACP listings we track are American-owned and stocked deep enough to reach store shelves.

To move up to Limited, .45 ACP needs 11 American-owned listings at scale on today's catalog: three more than today.

One dot per listing · 99 listings

.45 ACP FMJ: American-owned and all-brand listings
ListingsAmericanAll brands
At scale (250+)831
Any stock2272
In catalog2999

All brands, for comparison: 31.3% True Market Presence™

What moved it

  • We now count only stock that distributors currently report and that can be confirmed, which raised the American-owned share slightly for 9mm Luger, .300 AAC Blackout and .45 ACP.
  • We now count frangible ammunition as ball, which moved 9mm Luger from Scarce to Critical.
Report history for .45 ACP FMJ
DateAMP™RatingAmerican at scaleTMP™
Nov 5, 20268.1%Scarce8 of 9931.3%
Oct 31, 20267.1%Scarce7 of 9934.3%
September 2026not measuredNot ratednot measured11%
True Market Presence™ introduced (methodology change). Before the Oct 5 correction, as published.
June 2026not measuredNot ratednot measured2–13%
Availability range, smaller distributor sample (not comparable with later rows).

— Not measured at the time.

.357 Magnum FMJNone at scale

None at scale

None of the 24 .357 Magnum listings we track is American-owned and stocked deep enough to reach store shelves.

One American-owned listing at scale would move .357 Magnum up to Critical.

One dot per listing · 24 listings

.357 Magnum FMJ: American-owned and all-brand listings
ListingsAmericanAll brands
At scale (250+)None2
Any stock39
In catalog724

All brands, for comparison: 8.3% True Market Presence™

What moved it

  • We now count only stock that distributors currently report and that can be confirmed, which raised the American-owned share slightly for 9mm Luger, .300 AAC Blackout and .45 ACP.
  • We now count frangible ammunition as ball, which moved 9mm Luger from Scarce to Critical.
  • The report now counts all non-expanding range and practice ammunition as ball, which moved 9mm Luger from Critical to Scarce.
Report history for .357 Magnum FMJ
DateAMP™RatingAmerican at scaleTMP™
Nov 5, 2026NoneNone at scaleNone of 248.3%
Oct 31, 2026NoneNone at scaleNone of 244.2%
September 2026not measuredNot ratednot measured7.7%
True Market Presence™ introduced (methodology change). Before the Oct 5 correction, as published.
June 2026not measuredNot ratednot measured0–21%
Availability range, smaller distributor sample (not comparable with later rows).

— Not measured at the time.

The same count every day, with each caliber's trend: The Pipeline Report →

Section 4

The American ownership picture

Section 5

What is driving this

Section 6

What this means for you

Section 7

The domestic alternative exists and is being built

Section 8

A note on competing characterizations

Section 9

Our assessment

Section 10

A note on data and opinion

About Firehole

Firehole Arms

References

Ammunition Supply Report Archive

Changelog

What changed for buyers: ratings that moved, and changes to how we count that moved a published number. Figures published before a change are never recalculated.

  1. 9mm Luger moved from Scarce to Critical.
  2. 9mm Luger moved from Critical to Scarce.
  3. We now count only stock that distributors currently report and that can be confirmed, which raised the American-owned share slightly for 9mm Luger, .300 AAC Blackout and .45 ACP.
  4. 9mm Luger moved from Scarce to Critical.
  5. 9mm Luger moved from Critical to Scarce.
  6. Correction: stock figures now use all distribution data, and rating cut-offs move to 5%, 10% and 20%.

    From the start of daily tracking until Oct 4, our stock figures came from only part of the distribution data we follow, while catalog totals counted all of it. That understated availability in four of our five headline calibers: 9mm, 5.56 NATO, 300 BLK and .45 ACP. We fixed how quantities are read on Oct 4, and figures from Oct 5 on reflect full coverage. With the corrected data, we also revised our provisional rating cut-offs from 1% / 5% / 10% to 5% / 10% / 20%. The old cut-offs were set before we had full data to test them against, and the top step is now called Adequate. Earlier figures and ratings stay as published and are marked. The step in the trend on Oct 5 is this correction, not a change in the market. .357 Magnum is unaffected: still none at scale.

A rating changes only once the American-owned share clears a line by more than a quarter point. Until then the caliber keeps its last rating and is marked near the line.

Full changelog, every method and classification entry →