The Chadwick & Trefethen / MTM Slip-Top Rifle Ammo Box – 20 Round, 3.84" High, 260 Rem–10.75x68, Model J-20-LLD-16 (UPC 026057235165) is a durable, reusable plastic ammunition case designed to keep your tall rifle cartridges organized, protected, and easy to transport. Built for hunters, long-range shooters, reloaders, and anyone who needs secure 20-round storage for long cartridges, this slip-top ammo box offers a simple, proven design that outlasts flimsy factory packaging and makes ammo management a whole lot easier.
Purpose-Built 20-Round Rifle Ammo Box for Tall Cartridges
The J-20-LLD-16 slip-top rifle ammo box is specifically sized to hold 20 rounds of tall rifle ammunition up to 3.84" overall length, making it perfect for a wide range of medium and magnum cartridges, including:
Instead of storing expensive ammo in thin cardboard or mismatched trays, this hard plastic box gives each cartridge its own cell—reducing dings, deformation, and accidental tip damage, especially on soft point or polymer-tipped bullets.
3.84" Interior Height – Ideal for Long-Range & Magnum Rounds
This MTM-style rifle ammo case is built with a 3.84" internal height to handle longer loads often used in:
Long-range precision shooting
Magnum hunting cartridges
Heavier, high-BC bullets that extend overall length
The extra headroom helps ensure your cartridge tips aren’t crammed against the lid, which can be critical when you’re protecting handloads or premium factory rounds selected for accuracy and performance.
Slip-Top Design – Simple, Quiet, and Reliable
The slip-top lid design is straightforward, secure, and quiet:
Top slips over the base instead of the loud “snap” of some hinged lids
Ideal when you want to access ammo with minimal noise—at the range or in the field
Fewer moving parts means less to break, increasing long-term durability
You get quick, easy access to your ammo without wrestling with complicated latches or noisy hardware.
Rugged, Reusable Plastic Construction
The Chadwick & Trefethen / MTM Slip-Top Rifle Ammo Box J-20-LLD-16 is built from tough, molded plastic designed for real-world use:
Impact-resistant body helps protect against bumps in packs, range bags, and vehicles
Durable enough to be reused again and again, saving you money over disposable or cardboard options
Resistant to typical gun-cleaning environments, humidity, and temperature swings you encounter in hunting and shooting conditions
If you reload or shoot regularly, a reusable case like this quickly becomes an essential part of your storage system.
Organized Storage – No More Loose Rounds
This 20-round ammo box helps you stay organized at the bench and in the field:
Individual compartments for each cartridge help prevent bullet tips from banging together
Keeps round counts accurate, making it easy to track how much ammo you have left
Great for load development—you can dedicate each row or box to a specific charge or bullet type and label accordingly
Paired with a simple label or marker, this box lets you keep thorough records of your loads and performance.
Compact and Easy to Pack
The J-20-LLD-16 slip-top ammo box is compact enough to:
Fit easily in most range bags, backpacks, and rifle cases
Stack neatly on shelves for convenient at-home storage
Be quickly grabbed and tossed into your truck or gear bag without worrying about loose rounds rolling around
For hunters and long-range shooters who travel with carefully chosen ammo, this style of case keeps everything neat, secure, and ready to go.
Ideal for Hunters, Reloaders & Precision Shooters
This 20-round 3.84" high rifle ammo box is especially useful if you:
Hunt with 260 Rem or similarly long hunting cartridges
Shoot or reload 10.75x68 and need a reliable storage solution
Work up handloads and want safe, organized storage for test batches
Need ammo protection for transport to the range, matches, or hunting trips
By combining protective storage with easy access, it helps safeguard both your ammunition investment and your downrange performance.
Key Features & Specifications – MTM / Chadwick & Trefethen J-20-LLD-16
Product Name: Slip-Top Rifle Ammo Box
Brand: Chadwick & Trefethen / MTM-style
Model: J-20-LLD-16
UPC: 026057235165
Capacity: 20 rounds
Cartridge Fit: 260 Remington, 10.75x68, and other similar-length rifle cartridges (up to approx. 3.84" OAL)
Height: 3.84" internal (tall enough for longer bullets and magnum profiles)
Design: Slip-top lid, non-hinged, fits snugly over base
Material: Durable molded plastic, reusable
Use Case: Long-term storage, range carry, hunting trips, reload organization, and transport
If you want a reliable 20-round rifle ammo box that safely holds 260 Rem, 10.75x68, and similar tall cartridges, the Chadwick & Trefethen MTM Slip Top Rifle Ammo Box J-20-LLD-16 (UPC 026057235165) delivers durable, reusable, and organized storage that protects your ammunition at home, in the truck, and on the range.
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