The Ultimate Milwaukee PACKOUT Ammo Storage Setup for Reloaders (2026 Guide)
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If you're a reloader who also runs Milwaukee PACKOUT, you already know the system is built for serious work. But most shooters are still tossing loose rounds into zip-lock bags or generic plastic trays that rattle, tip, and waste space. This guide breaks down how to build a purpose-driven, anti-rattle ammo storage system inside your PACKOUT 48-22-8436 Slim Compact — and why the MAXOUT Ranger Pro Ammo Inserts are the only insert engineered specifically for this case.
Why Milwaukee PACKOUT Is the Best Platform for Range Day Organization
The Milwaukee PACKOUT modular storage system has become the gold standard for tradespeople and serious hobbyists alike. Its IP54-rated weather resistance, stackable locking design, and rugged construction make it equally at home on a job site or at the shooting range. The 48-22-8436 Slim Compact in particular has become a favorite among shooters for its low-profile form factor — it fits in truck beds, range bags, and gun safes without eating up space.
The problem? Milwaukee doesn't make ammo-specific inserts. Until now late 2024 when we introduced the compartment specific Ranger inserts, reloaders were left improvising or using empty bins. Meet the MAXOUT maximizing the case for a full load of any single caliber!

The Problem With Generic Ammo Storage in PACKOUT
Most aftermarket PACKOUT inserts are designed for tools — not ammunition. They leave gaps that let rounds roll, stack unevenly, and create noise during transport. For reloaders hauling carefully prepared rounds to the range, that's not just annoying — it risks damaging your work.
Common issues with generic inserts:
- Rounds rattle and shift during transport
- No caliber-specific fitment — one-size-fits-none
- Wasted vertical space under the PACKOUT lid
- PLA construction that warps in hot vehicles
- No anti-rattle seal against the lid

Introducing the MAXOUT Ranger Pro: Purpose-Built for PACKOUT Ammo Storage
The MAXOUT Ranger Pro Ammo Insert is the only insert engineered from the ground up to fit the Milwaukee PACKOUT 48-22-8436 Slim Compact. Every dimension is precision-profiled to conform to the PACKOUT lid — creating a true anti-rattle seal that keeps your reloaded rounds locked down, silent, and protected.
It's 3D printed in the USA using high-quality PETG — not PLA. PETG is impact-resistant, heat-tolerant, and chemical-resistant, making it the right material for a range environment where temperatures spike and solvents are present.

Key Features at a Glance
- Anti-rattle lid seal — precision-molded interior matches the PACKOUT lid geometry exactly
- Impact-resistant PETG construction — survives drops, heat, and daily abuse
- Caliber-specific slot fitment — minimal tolerance from round base to lid keeps rounds immobile
- Hex slot design — maximizes round count while matching PACKOUT's aesthetic
-
Optional Solid Tray Design
- Made in the USA — small batch, quality-controlled manufacturing
- Compatible with Milwaukee PACKOUT 48-22-8436

Caliber Capacities: How Many Rounds Fit?
One of the most common questions from reloaders is capacity. Here's what the Ranger Pro delivers per insert in the 48-22-8436:
| Caliber | Capacity (rounds) |
|---|---|
| .22 LR | 1,091 |
| .17 HMR | 845 |
| .380 ACP | 460 |
| 9mm | 478 |
| .40 S&W | 352 |
| 10mm Auto | 343 |
| .45 ACP | 292 |
Whether you're hauling bulk .22 LR for a plinking session or a full complement of reloaded 9mm for USPSA, the Ranger Pro has the capacity to handle it.

Available in Black & Red — Match Your PACKOUT Build
The Ranger Pro is available in both Black and Red colorways so you can match your existing PACKOUT setup or color-code by caliber for fast identification at the range.

Why Reloaders Specifically Love the Ranger Pro
Generic ammo boxes treat all rounds the same. Reloaders don't. You've invested time, components, and precision into every round — your storage should reflect that.
The Ranger Pro is designed with the reloader's workflow in mind:
- Rounds stay separated — no contact between cases, protecting your brass and primers
- Easy to grab — upright orientation means you can pull rounds one-handed at the bench or the line
- Dedicated caliber inserts — no mixing, no confusion, no cross-contamination of loads
- Pairs with modular inserts — run two calibers in one case when needed
- Silent transport — anti-rattle seal means no noise, no shifting, no stress
How to Build Your Milwaukee PACKOUT Range Day Setup
Here's a simple framework for building a dialed-in PACKOUT range system around the Ranger Pro:
- Start with the 48-22-8436 Slim Compact — the low-profile case that the Ranger Pro is built for
- Choose your primary caliber insert — one Ranger Pro per case for a dedicated single-caliber setup
- Add a modular insert for a secondary caliber — pair two calibers in one case when needed
- Color-code by caliber — use Red for one caliber, Black for another for instant visual ID
- Stack your PACKOUT cases — the system locks together, so your ammo case stacks with your cleaning kit, tools, and accessories
PETG vs PLA: Why Material Matters for Ammo Storage
A lot of 3D-printed PACKOUT accessories on the market are made from PLA — the cheapest, most common filament. PLA has a glass transition temperature around 60°C (140°F). Leave it in a hot car in summer and it warps. Use it near gun cleaning solvents and it degrades.
The Ranger Pro uses PETG, which offers:
- Higher heat resistance — survives summer vehicle temperatures
- Chemical resistance — won't degrade from CLP, Hoppes, or other solvents
- Impact resistance — absorbs drops without cracking
- Dimensional stability — maintains tight tolerances over time
For a product that lives in your truck, your range bag, and your gun safe, material quality isn't optional.
Frequently Asked Questions
Does the Ranger Pro fit the Milwaukee PACKOUT 48-22-8435 (standard compact)?
The Ranger Pro is specifically engineered for the 48-22-8436 Slim Compact. The 8435 has different internal dimensions. Check our full product lineup for 8435-compatible options.
Can I run two calibers in one case?
Yes — the Ranger Pro is designed to pair with our modular inserts so you can run two calibers in a single 48-22-8436 case.
Is this compatible with factory ammo or only reloads?
Both. The Ranger Pro works equally well with factory ammunition and reloaded rounds. It's ideal for reloaders because of the round separation and anti-rattle design, but any shooter benefits from the organization.
How do I clean the insert?
PETG is chemical-resistant. Wipe down with a damp cloth or rinse with water. Avoid prolonged exposure to acetone.
Will the ammo rattle or mix if I drop my PACKOUT?
No, unlike generic copies of online models, The MAXOUT Ranger Pro is precisely engineered to match the PACKOUT lid. This creates a true factory fit.
Will these 3D inserts melt in heat or a car?
No, unlike generic PLA copies of online models, we use High-Temperature PETG ensuring it will live up to the tough atmosphere and conditions we expect you to travel.
How do I know what caliber is in my PACKOUT?
Many shooters and reloaders opt to using color coding. We offer red and black inserts to accommodate color coding. Additionally we offer Clip-On PACKOUT labels that are totally customizable to allow you to quickly and easily identify what’s in your PACKOUT.
Are these inserts resistant to gun cleaning solvents and CLP?
Yes. Since we use PETG, the Ranger Pro is chemically resistant to most common lubricants and cleaning solvents like Hoppe’s No. 9 or CLP. Unlike cheaper plastics, it won't become brittle or "melt" if a bottle leaks in your range bag.
Why should I use an insert instead of just pouring ammo into the red bins?
Pouring loose ammo into bins causes "rounding"—where the brass and primers rub together, potentially causing damage or inconsistencies. The Ranger Pro keeps every round separated and upright, making it easier to grab for reloading mags and protecting the integrity of your precision reloads.
Do I need to modify my PACKOUT case to install the Ranger Pro?
No modifications required. Our inserts are "drop-in" ready. You simply remove the stock red bins and slide the Ranger Pro into the existing slots. It uses the factory locking mechanism to stay seated.
What is the difference between the "Solid Tray" and "Individual Slot" designs?
The Individual Slot design (like for 9mm or .45 ACP) keeps (every single) round separated for maximum protection. The Solid Tray design is a bulk-storage solution that maximizes round count (over 1,000 rounds!) for a single caliber, not capable of mixing and matching calibers.
Ready to Upgrade Your PACKOUT Range Setup?
The MAXOUT Ranger Pro is the only ammo insert built specifically for the Milwaukee PACKOUT 48-22-8436 Slim Compact. If you're serious about range day organization — and serious about protecting your reloaded rounds — this is the upgrade your PACKOUT build has been missing.
Shop the full Ranger Pro lineup at Vast Concepts →
