RCBS Formula 1 Walnut Shell Media - 5lb / 2.26kg
If you want your brass coming out clean, smooth, and ready to reload without hassle, RCBS Formula 1 Walnut Shell Media is the workhorse that gets it done. It’s finely ground walnut designed to strip carbon, dirt, and residue fast in a vibratory tumbler, even getting into those awkward primer pockets and case necks. Chuck it in, let it run, and you’ll get consistently clean brass without overthinking the process.
-Nathan (Technical Advisor)
The RCBS Formula 1 Walnut Shell Media is a high-quality dry tumbling solution designed to deliver fast, effective cleaning of heavily soiled brass cases. Suitable for use in both sidewinder and vibratory case cleaners, this media is ideal for reloaders who want reliable results with minimal effort.
Made from finely ground walnut shell media, Formula 1 is processed to a 12/12 sieve size, allowing it to clean quickly while reaching into hard-to-access areas of brass cases. This ensures a thorough clean that prepares cases perfectly for the next stage of reloading.
Supplied in secure, easy-to-store packaging, the media is simple to handle and long-lasting. Each pack also includes one packet of RCBS polishing compound, helping to enhance the final finish of your brass for a cleaner, brighter result.
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Finely ground walnut shell media formulated specifically for fast and effective brass cleaning
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12/12 sieve size for efficient removal of dirt, carbon, and residue from heavily soiled cases
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Compatible with sidewinder and vibratory case cleaners, offering versatile use across different setups
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Excellent at reaching hard-to-clean areas, including inside case necks and primer pockets
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Ideal for routine and heavy-duty brass cleaning, helping prepare cases for consistent reloading
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Supplied in secure, durable packaging that is easy to store and handle
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Includes one packet of RCBS polishing compound to improve brass brightness and overall finish
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Long-lasting and economical, providing reliable performance over multiple cleaning cycles
- RCBS Formula 1 Walnut Shell Media
Tactical Scope Shipping Policy
Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.
Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.
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Note: The above DPD link is to our group partner site Optics Warehouse, with whom we share logistics and stock. Link opens in a new window.
Couriers
We use DPD, Royal Mail, TNT, and UPS courier services for all our UK and international orders. Once your order is dispatched, you will receive an email with your unique tracking number.
In-Store Items
These are items we have in stock and aim to dispatch within 1–2 working days. During busy periods, this may be delayed slightly. If you'd prefer to collect your item in person, please contact us in advance to arrange. Collection orders must be paid for beforehand.
Pre-Order Items
Pre-order items are typically out-of-stock or in limited supply. Purchasing a pre-order secures your item, and it will be dispatched within 24 hours of restock where possible. Check the product page for estimated restock dates. These dates may change, so staying in touch is advised.
International Delivery & Taxes
If your shipping address is outside the UK, you may incur import duties or taxes upon arrival in your country. These charges are your responsibility. Customs regulations vary, so please check with your local customs office. Some packages may be opened for inspection.
Need Help?
If you need assistance, call us at +44 (0)1803 611895 (Optics Warehouse) or email [email protected].
DPD Shipments & PIN Code Delivery
We have now introduced DPD Pin Code verification for all orders shipped via DPD. You will receive a PIN via email and text.
A valid email and mobile number must be provided at checkout. Emails will come from Riviera House 3PL. Please check spam/junk folders if not received.
Failure to present your PIN to the delivery driver will result in a failed delivery and rescheduling may be required.