The Sporting Arms and Ammunition Manufacturers’ Institute (SAAMI) has officially accepted three new cartridges into its lineup, marking another milestone in the evolution of modern ammunition.

For those unfamiliar, SAAMI has been the gold standard for firearm safety and reliability since 1926, setting industry benchmarks that ensure the safety, performance, and interchangeability of firearms and ammunition.

The organization has already published complete specifications, mechanical drawings, and chamber details for these new cartridges on its website, giving enthusiasts and manufacturers a closer look at what’s to come.

Let’s dive into the details of these three new cartridges and explore what makes them stand out in the world of firearms and ammunition.

1. 7 mm Backcountry By Federal: Pushing The Limits of Pressure

Federal’s 7 mm Backcountry is a game-changer in the world of high-pressure cartridges. With a maximum average pressure of 80,000 p.s.i., it far exceeds the typical limits of traditional brass-cased cartridges, which rarely go beyond 65,000 p.s.i. So, how does it handle such extreme pressure? The secret lies in its innovative alloy-steel case, a departure from the conventional brass design.

According to Jake Burns, Federal Rifle Ammunition Managing Engineer, the alloy-steel case acts as a “mini pressure-containment vessel.” Unlike brass cases, which primarily serve as containers for propellant, this advanced design absorbs energy without cracking or stretching. This not only enhances safety but also ensures consistent performance under high-pressure conditions.

The 7 mm Backcountry fires a 170-grain bullet at a blistering velocity of 3,000 feet per second (f.p.s.), making it a formidable choice for hunters and long-range shooters who demand precision and power.

2. 25 Creedmoor By Hornady: A New Addition To The Creedmoor Family

Hornady’s 25 Creedmoor is the latest addition to the highly respected Creedmoor family, which has been a favorite among competitive shooters and hunters since the introduction of the 6.5 mm Creedmoor in 2007. The 25 Creedmoor fires a 134-grain bullet at a velocity of 2,810 f.p.s., with a maximum average pressure of 62,000 p.s.i.

The Creedmoor line is known for its flat trajectory and manageable recoil, making it ideal for precision shooting. The 25 Creedmoor continues this legacy, offering a balance of speed, accuracy, and power. It joins its siblings — the .22, 6 mm, and 6.5 mm Creedmoor cartridges — as a versatile option for both competition and hunting.

3. .338 Advanced Rifle Cartridge (ARC) by Hornady: Power Meets Precision

Hornady’s second new offering, the .338 Advanced Rifle Cartridge (ARC), is designed for those who need a heavier-hitting round. It fires a 175-grain bullet at a velocity of 2,050 f.p.s., with a maximum average pressure of 52,000 p.s.i. This cartridge builds on the success of its predecessor, the 6 mm ARC, which debuted in 2020 and quickly gained popularity for its versatility and performance.

The .338 ARC is tailored for shooters who require a balance of power and precision, making it an excellent choice for medium to long-range applications. Whether you’re hunting big game or engaging targets at a distance, this cartridge delivers the performance you need.

Why This Matters

The introduction of these three cartridges highlights the ongoing innovation in the firearms industry. Each cartridge brings something unique to the table:

• The 7 mm Backcountry redefines pressure limits with its alloy-steel case, offering unmatched performance for high-pressure applications.
• The 25 Creedmoor expands the beloved Creedmoor family, providing shooters with another versatile and accurate option.
• The .338 ARC combines power and precision, catering to those who need a heavier round without sacrificing accuracy.

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For hunters, competitive shooters, and firearm enthusiasts, these new cartridges open up exciting possibilities. Whether you’re pushing the boundaries of long-range shooting or seeking a reliable round for hunting, these SAAMI-approved options are worth exploring.

Final Thoughts

SAAMI’s acceptance of these cartridges is a testament to the continuous evolution of ammunition technology. By setting rigorous standards, SAAMI ensures that these new offerings meet the highest levels of safety and performance. As always, it’s essential to use these cartridges responsibly and within the guidelines provided by manufacturers.

If you’re curious to learn more, head over to SAAMI’s website for detailed specifications and mechanical drawings. Whether you’re a seasoned shooter or a newcomer to the world of firearms, these new cartridges are sure to spark your interest and elevate your shooting experience.