Best 300 WSM Brass

What is 300 WSM Brass? 🧐

⭕ It refers to the brass casings specifically designed for the .300 Winchester Short Magnum (WSM) cartridge. This remarkable cartridge, first introduced in 2001, offers shooters a potent combination of power and versatility. It serves as the foundation for assembling ammunition for this formidable cartridge. It plays a crucial role in ensuring reliable performance, consistent accuracy, and efficient reloading.

Popular Uses 💥

1. Long-Range Precision Shooting: Thanks to its superb ballistics and flat trajectory, the 300 WSM cartridge has become a favorite among long-range shooters. Whether you’re engaging targets at the range or venturing into the world of competitive shooting, it provides the necessary foundation for consistent and accurate shots.
2. Big Game Hunting: The 300 WSM cartridge’s potent stopping power and manageable recoil make it a go-to choice for big game hunting. From majestic elk to elusive whitetail deer, this cartridge offers the punch needed to ethically take down game animals swiftly and effectively.
3. Tactical Applications: Law enforcement and military personnel also appreciate the 300 WSM cartridge for its impressive performance in tactical scenarios. Its extended effective range and hard-hitting capabilities make it a valuable asset in critical situations.

Top 300 WSM Brass

Types 🔍

Nickel-plated brass: This type of brass is coated with a thin layer of nickel. This coating helps to protect the brass from corrosion and makes it easier to reload. Magnum brass: This type of brass is thicker and stronger than standard brass. This makes it more suitable for use in magnum cartridges.
Unprimed brass: This is brass that has not been primed. This type of brass is typically used by reloaders who want to load their own ammunition. Primed brass: This is brass that has already been primed with a primer. This is the most common type and is what is typically used for factory ammunition.
Our Top Pick
Norma .300 Winchester Short Magnum Unprimed Rifle Brass
This brass is known for its superior quality, making these cases durable enough to withstand multiple reloads and years of use without cracking or gas leaks. The case neck is annealed to preserve softness, which prevents gas leaks and reinforces the case's ability to securely hold the bullet. As a result, both professional shooters and serious hobbyists can benefit from using Norma Brass.
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✳️ Consistency: Consistency in weight, dimensions, and capacity is vital for reliable performance and accuracy. High-quality 300 WSM brass ensures uniformity shot after shot, helping you achieve consistent results downrange.
✳️ Durability: Brass casings endure considerable stress during firing and reloading. Opting for durable brass that withstands multiple reloads without compromising performance is a wise investment.
✳️ Case Preparation: The level of case preparation required may vary between different brass brands. Some may require more trimming, deburring, or flash hole uniforming than others. Understanding your preferences and the effort you’re willing to put into case prep will guide you toward the right choice.

Best 300 WSM Brass Reviews

1# Berger Classic Hunter .300 Winchester Brass Ammunition

Berger Classic Hunter .300 Winchester Brass Ammunition

Berger’s Classic Hunter .300 Winchester Ammunition is perfect for short to medium-range hunting applications. The 168-grain bullet is ideal for lighter-weight rifles and produces less recoil for a more comfortable shooting experience. With its high-velocity performance, this cartridge is sure to take down your game in its tracks. Utilizing only the highest quality components, Berger cartridges are designed by ballistician Bryan Litz using scientific techniques. Trust Berger ammo to provide you with the reliability, accuracy, and consistency you need in the field.

  • Superior accuracy.
  • Reliability.
  • Consistency.
  • Quality components.
  • May not be compatible with all rifles.
  • Lighter bullet weight may not be ideal for long-range applications.


2# Norma .300 Winchester Short Magnum Unprimed Rifle Brass

Norma .300 Winchester Short Magnum Unprimed Rifle Brass

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Looking for the gold standard in cartridge cases? Look no further than Norma Brass. Norma products are known worldwide for their high quality, and their cartridge cases are a big part of that reputation. Superior quality means these cases will last for many reloads and stand up to years of use without cracking or gas leaks. As a result of using this product, we found that the case neck is annealed to make it softer, which prevents gas leaks and ensures the case holds the bullet firmly in place. So whether you’re a professional shooter or just a serious hobbyist, Norma Brass is the right choice for you.

  • Superior quality ensures long life and many reload.
  • Made of the best possible raw materials with the narrowest tolerances.
  • Delivers accuracy round after round.
  • The case neck is annealed to become softer, preventing gas leaks and enabling the case to hold the bullet firmly for at least 10 years without cracking as a result of aging material.
  • The hardness increases down on the case body to avoid unnecessary stretching.
  • May be too hard and prone to cracking.
  • Annealing may not be effective in preventing gas leaks and bullet loosening over time.


3# Nosler Custom Rifle Brass .300 Winchester Short Magnum

Nosler Custom Rifle Brass .300 Winchester Short Magnum

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Introducing Nosler Custom Rifle Brass .300 Winchester Short Magnum- the perfect choice for reloaders looking to achieve maximum accuracy and consistency in their reloads. This top-quality brass is created to exact standards and tolerances, using only the finest materials for superior results. Each piece of brass is carefully prepped and ready to load, with chamfered and deburred case mouths and flash holes that are checked for proper alignment.

  • Superior accuracy and consistency.
  • Carefully prepped and ready to load.
  • Rigorous quality control.
  • It may be more expensive than other brands.
  • Not available in all calibers.


4# Norma Whitetail .300 Winchester Brass Ammunition

Norma Whitetail .300 Winchester Brass Ammunition

The .300 Winchester Magnum is a popular choice for hunters and marksmen alike, thanks to its superior performance and versatility. Featuring a longer case and shorter neck than its predecessors, the .300 Win Mag offers increased case capacity for improved power and accuracy. Whether you’re hunting large game or target shooting at the range, the Norma Whitetail .300 Winchester Brass Ammunition is the perfect choice for peak performance. Each round is handcrafted in Sweden with the utmost care and precision, ensuring reliable results every time you pull the trigger.

Video review

  • Superior performance.
  • Versatility.
  • Handcrafted in Sweden with the utmost care and precision.
  • It may be too powerful for some shooters.
  • Limited availability.


5# Norma 300 WSM Brass Case

Norma 300 WSM Brass Case

Reloaders will appreciate the Norma 300 WSM Brass Case for its premium quality and attention to detail. Each brass case is made to exacting standards, ensuring consistent performance and accuracy in your finished cartridges. The cases are bulk packed from the same lot for your convenience, and Norma keeps a good inventory on hand to minimize any inconvenience.

  • Precision manufacturing for consistent performance and accuracy.
  • Bulk packed from the same lot for reloaders’ convenience.
  • Norma Brass is made to exacting standards.
  • Machined case heads, drilled flash holes, and closed tolerance wall thickness.
  • May occasionally be out of stock.


6# Hornady .300 WSM Unprimed Brass

Hornady .300 WSM Unprimed Brass

Looking for dependable and high-quality .300 WSM brass cases? Look no further than Hornady Unprimed Brass. These cases feature tight wall concentricity that helps ensure proper bullet seating in both the case and the chamber of your firearm, for increased accuracy. Higher concentricity also aids in a uniform release of the bullet on firing, for optimal velocity. Benchrest shooters know that uniform case wall thickness is vital to accuracy, and Hornady manufactures extremely tight tolerances to ensure this critical element is as consistent as possible.

  • Tight wall concentricity helps ensure proper bullet seating.
  • Higher concentricity aids in the uniform release of the bullet.
  • Manufactured to extremely tight tolerances.
  • May not be as accurate as other brands.
  • Tighter tolerances may make reloading more difficult.


7# Federal .300 WSM Brass Case

Federal .300 WSM Brass Case

Make your reloads as reliable as Federal ammunition with brass cases from the manufacturer. You’ll find pristine, unfired brass for popular rifle cartridges here, ready to be reloaded for your next hunting trip.

  • Pristine, unfired brass.
  • Consistency.
  • Made in the USA.
  • May not be the best option for everyone.


8# Winchester .300 WSM Brass Case

Winchester .300 WSM Brass Case

When you need reliable and consistent brass for your .300 WSM rifle, Winchester is a clear choice. Their factory-new brass is unprimed and always sold from the same lot, so you can be confident in its quality and performance. Winchester is the only U.S. ammo manufacturer that makes its cases starting from raw materials, so their cases are of the highest quality and precise engineering. This clean, unprimed brass withstands the stresses of multiple load-fire-reload cycles, and because it comes from the same production lot, you can be sure of consistency in your finished ammo.

  • Winchester is the only U.S. ammo manufacturer that makes its cases starting from raw materials through to the finished product.
  • Their precise engineering and tight tolerances help ensure you get high-quality brass that chambers positively.
  • This clean, unprimed brass withstands the stresses of multiple load-fire-reload cycles, and the brass in each bag comes from the same production lot for optimal consistency in your finished ammo.
  • Factory-new brass comes unprimed and is always sold from the same lot.
  • It may not be as durable as other brands of brass.


9# Lapua .300 Winchester Magnum Brass

Lapua .300 Winchester Magnum Brass

Lapua is proud to offer .300 Winchester Magnum brass, perfect for the handloading community. This brass is renowned for its consistency and quality, making it a great choice for F-Class competitors. Based on our observations this round has seen renewed popularity in the last few years, thanks in part to the success of the U.S. Rifle Team. The team members rely on Lapua brass for their specially crafted ammunition, so you can be sure that this brass is up to the task of delivering accurate shots at long range.

Video review

  • Quality brass.
  • Consistent performance.
  • Rebated rim.
  • It may be difficult to find.
  • Higher price tag.


10# Hornady .300 Winchester Magnum Brass Case

Hornady .300 Winchester Magnum Brass Case

Hornady .300 Winchester Magnum brass cases are the foundation for an accurate cartridge. These unprimed brass cases feature tight tolerances, uniform concentricity, and consistent weight and capacity. The manufacturing processes ensure consistent bullet seating and uniform bullet release for optimal velocity and accuracy. Target shooters demand consistency in every component of their ammunition, which is why Hornady delivers brass cases that are treated as the foundation of an accurate cartridge, not a commodity.

  • Tight tolerances.
  • Uniform concentricity.
  • Consistent weight and capacity.
  • Manufacturing processes ensure consistent bullet seating and uniform bullet release.
  • Optimal velocity and accuracy.
  • May not fit other guns.
  • It’s not always in stock.
  • Pricier than some competitors.


Step-by-Step Reloading Guide 📖

📌 Step 1. Inspect the Brass: Before reloading, inspect each casing for signs of damage or excessive wear. Discard any damaged or questionable brass.

📌 Step 2. Resize and Decap: Use a reliable resizing die to resize the brass back to the correct dimensions. Remove the spent primer during this step.

📌 Step 3. Clean the Brass: Thoroughly clean the resized brass to remove dirt, debris, and any residue from the resizing process. Ultrasonic cleaners and tumblers are popular options for achieving sparkling clean brass.

📌 Step 4. Priming: Insert new primers into the primer pockets of the cleaned and resized brass using a reliable priming tool. Ensure consistent and proper primer seating.

📌 Step 5. Powder Charging: Use a quality powder scale and measure the desired amount of powder for each casing. Consistency and precision are crucial in this step to maintain accuracy and safety.

📌 Step 6. Bullet Seating: Carefully seat the desired bullet into the case mouth using a proper seating die. Pay attention to proper alignment and seating depth.

📌 Step 7. Crimping (Optional): Depending on your specific needs and preferences, you may choose to apply a crimp to ensure bullet retention. Not all reloaders opt for crimping, so it’s essential to research and make an informed decision.

📌 Step 8. Final Inspection: Once you’ve completed the reloading process, perform a final inspection of each round, checking for proper primer seating, overall cartridge length, and other critical factors.

Please watch this video to learn more information 📺


Are there any safety considerations when reloading 300 WSM brass?
🧪 Follow Reloading Manuals: Reloading manuals are your trusty companions on this reloading adventure. They provide essential information, including load data, powder charges, and safety guidelines specific to the 300 WSM cartridge. Always consult reputable manuals and follow their instructions meticulously.
📚 Educate Yourself: Knowledge is power, and when it comes to reloading, it’s paramount. Take the time to educate yourself about proper reloading techniques, equipment usage, and safety procedures. Attend reloading classes, join shooting communities, and soak up the wisdom shared by experienced reloaders.
🧪 Double-Check Your Data: Accuracy matters, not only on the range but also in your reloading process. Double-check your load data, powder charges, and bullet seating depths to ensure they match the specifications provided by reliable sources. Precision is key for safety and consistent performance.
🛠️ Use Appropriate Tools: Investing in high-quality reloading tools and equipment is crucial for safety and accuracy. Ensure you have the correct resizing dies, priming tools, powder scales, and bullet seating dies specifically designed for the 300 WSM cartridge. Using the right tools for the job helps minimize errors and promotes safe reloading practices.
👀 Inspect Brass Thoroughly: Before reloading, carefully inspect each 300 WSM brass casing for signs of damage, excessive wear, or defects. Discard any brass that raises concerns or does not meet the necessary criteria for safe reloading. Visual inspections are vital to catch potential issues early on.
👓 Protect Your Eyes and Ears: Reloading can be a noisy affair, and debris or spent primers can pose risks to your eyes. Always wear appropriate eye protection and earplugs or earmuffs when reloading. Preserve your precious senses while enjoying the rewarding process of creating your own ammunition.
🧼 Maintain a Clean Workspace: A clean and organized reloading workspace is not just visually pleasing but also contributes to safety. Keep your area free from clutter, especially combustible materials. Clean up any spilled powder promptly and dispose of waste safely.
🚫 Avoid Experimental Loads: Reloading can be a tempting playground for experimentation, but it’s crucial to resist the urge to go beyond established load data. Stick to proven and tested loads to ensure the safety of yourself and your firearm. Leave the wild experiments to the experts and enjoy the reliability of tried-and-true loads.
Can I mix brass from different manufacturers when reloading 300 WSM?

Mixing brass from different manufacturers is possible, but it’s important to consider a few factors and approach it with caution. Here’s what you need to know:

  • 🔀 Brass Compatibility: While the dimensions and overall specifications of 300 WSM brass are standardized, there may still be slight variations between different manufacturers. Mixing brass from different sources can result in variations in case capacity, wall thickness, and overall dimensions. These variations may impact cartridge performance, consistency, and accuracy.
  • 🔄 Load Development: When using mixed brass, it’s crucial to perform load development and testing. Start with conservative loads and gradually work your way up, monitoring performance, accuracy, and pressure signs. Carefully observe any differences in velocities and groupings to determine the suitability of the mixed brass.
  • 🔀 Uniformity and Consistency: To ensure optimal results, strive for uniformity and consistency in your reloading process. This includes factors such as case trimming, case neck tension, and primer seating depth. Consistency across different brands of brass helps promote reliable performance and accuracy.
  • 🧩 Sorting and Preparation: Before reloading, sort your brass based on brand and visually inspect each casing for signs of damage or excessive wear. Removing any questionable brass from the mix ensures safer and more reliable reloading results.
  • 🔀 Considerations for Precision Shooting: If you’re engaged in precision shooting or seeking the utmost consistency, it’s generally recommended to stick with brass from a single manufacturer. This minimizes potential variations and streamlines your reloading process.
How To Clean The Brass?

🚿 Step 1: Gather Your Dirty Brass. Collect your dirty brass casings and remove any debris, dirt, or spent primers that may be present. Give them a quick once-over with a magnet to remove any steel or iron contaminants that may have found their way into the mix.

🧽 Step 2: Choose Your Cleaning Method. There are various methods to clean brass, so choose the one that suits your preferences and resources. Here are a couple of popular options:

  1. Tumbling: Prepare your brass for a refreshing spin! Use a tumbler along with cleaning media, such as crushed walnut shells or stainless steel pins. Add your brass and let the tumbler work its magic, agitating and scrubbing away dirt and grime.
  2. Ultrasonic Cleaning: Give your brass a luxurious ultrasonic bath! Ultrasonic cleaners use high-frequency sound waves to create tiny bubbles that gently remove dirt and residue. Simply place your brass casings in the cleaner along with a suitable cleaning solution, and let the ultrasonic waves do their job.

🌬️ Step 3: Dry and Inspect. Once your brass is clean and shiny, it’s time to dry them off. Lay them out on a clean towel or drying rack and let nature work its wonders. If you’re in a hurry, you can use a hairdryer on low heat or a brass drying machine specifically designed for this purpose. After drying, take a close look at your brass casings. Inspect them for any remaining debris, cracks, or signs of excessive wear. Discard any casings that show signs of damage or are unsuitable for reloading.

🧼 Step 4: Polish for Perfection. For that extra touch of brilliance, you can polish your brass casings. Use a brass polish and a soft cloth to give them a final shine. This step is optional but can add a visually pleasing touch to your finished rounds.

📦 Step 5: Store and Protect. Once your brass casings are clean and dry, store them in a suitable container or ammo box. Keep them in a cool, dry place to prevent corrosion and maintain their quality until you’re ready to reload.

We believe this video can be helpful for you 📺

What does the “W” stand for in the name of the 300 WSK Brass alloy?
The “W” in the name of the 300 WSM (Winchester Short Magnum) brass alloy stands for “Winchester.” The 300 WSM cartridge was developed and introduced by the Winchester Repeating Arms Company in 2001. The inclusion of “Winchester” in the cartridge’s name signifies its association with the company that designed and produced it.
How durable is 300 WSK brass?

The specific durability of 300 WSM brass can vary depending on factors such as the brand of brass, the care taken during reloading and shooting, and the level of stress the brass is subjected to during firing and resizing.

🔎 High-quality brass from reputable manufacturers is designed to be robust and long-lasting. It is typically made from strong materials, such as brass alloys, that can withstand the high pressures generated during firing.

🔎 With proper care and maintenance, brass can endure numerous reloadings without compromising performance. Regular inspections for signs of excessive wear, cracks, or other damage are essential to ensure safety and reliability. If any signs of degradation or damage are detected, it is advisable to retire the brass from further reloading.

Conclusion 🧩

300 WSM brass is a versatile and reliable component that forms the foundation for assembling ammunition for the .300 Winchester Short Magnum cartridge. With its durable construction, this brass can withstand the pressures of firing and resizing, allowing for multiple reloadings without compromising performance.  By selecting high-quality brass, following proper reloading techniques, and prioritizing safety, shooters can enjoy the benefits of this brass while maximizing its lifespan and durability. So, load up your 300 WSM brass with confidence, knowing that it is a durable companion on your shooting journey. Explore its applications, experiment with various loads, and appreciate the consistency and longevity it brings to your ammunition. Happy shooting!

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3 months ago

Hi! How many times can I reload 300 WSM brass?

    3 months ago
    Reply to  Vampire

    🟨 The number of times you can reload 300 WSM brass depends on factors such as the brand of brass, how well it’s maintained, and the level of stress it endures during firing and resizing. High-quality brass from reputable manufacturers can typically withstand multiple reloads, but it is essential to inspect each casing for signs of excessive wear or damage before reloading.

      3 months ago

      For the first 4 years of my reloading experience, I only used Hornady or Winchester brass. Surprisingly, both gave me great accuracy and reasonably good standard deviation and extreme spread.

        3 months ago

        Greetings, where can I purchase 300 WSM brass?

          3 months ago
          Reply to  OldSchool

          300 WSM brass can be purchased from various sources, including reputable firearms stores, online retailers, and directly from manufacturers. It is important to ensure you are buying from trusted sources to obtain genuine and high-quality brass.
          Please check our post as well ☑️

            3 months ago

            Hello everyone,
            Lately, I have been struggling to find brass for my 300WSM like many others during these times. I came across some Norma brass for $2 per casing. However, I am wondering why Paterson and Starline do not manufacture it. They produce brass for some uncommon calibers, possibly for benchrest shooting, but not for the WSM. I might not fully understand their business model, but it seems to me that making brass with a wider appeal would increase their sales compared to an uncommon caliber that only benchrest shooters would be interested in.

              3 months ago
              Reply to  Vikram

              I also had a hard time finding brass for my 300wsm. Without considering the availability of brass or factory ammo, I impulsively bought a T3 lite SST/SYN for more than 40% below average price.

              I went to purchase Hornady 300wsm brass, but I found Federal Power Shock ammo at a slightly higher cost than the brass. So, I decided to buy both in large quantities. Moreover, I was able to purchase a considerable amount of Winchester 300wsm brass from my local Cabela’s, using my Cabela’s club points, which made the brass virtually free. Luckily, I stumbled upon a 200-count lot of Norma 300wsm brass priced below $1.20 each and bought it.

                3 months ago
                Reply to  Vikram

                I have 50 pieces of new Nosler 300WSM brass