Dillon RL550C vs XL750: Which Progressive Press Fits Your Load?

You are trying to decide between Dillon's two main progressive platforms and need to know which handles your specific cartridge types without headaches. This page breaks down the functional differences in case capacity, indexing, and workflow to tell you exactly which machine saves you time.

The differences at a glance

The core distinction is case capacity and indexing method. The RL550C is a 50-station machine, while the XL750 is a 35-station machine. They also differ in how the shell plate advances. We go through dillon xl750 review step by step in its own article.

Feature	Dillon RL550C	Dillon XL750
Case Capacity	50 stations	35 stations
Indexing	Manual	Automatic
Best For	Mixed rounds, precision	Short rounds, speed
Workflow Control	Higher user oversight	Faster, less oversight

Both presses share similar dies and toolheads, but the platform structure changes how you interact with the machine. The indexing difference is the most critical factor, as it dictates your ability to catch errors before they propagate down the line.

Build and case capacity: 50 vs 35 stations

Capacity dictates how often you stop to reload your case tube. The RL550C holds 50 cases, meaning you can process a full magazine of ammo before the shell plate runs dry. The XL750 holds 35 cases.

If you load short cartridges like .223 or 9mm, the 35 stations on the XL750 can feel limiting. You will be stopping more frequently to replenish cases. The 50-station RL550C keeps the workflow moving longer, which is a significant time saver during bulk loads.

For long cartridges where you are processing fewer total rounds per session, capacity matters less, but the larger buffer of the 550 series is still a comfort factor. It reduces the frequency of case drops and allows for a more continuous rhythm, which helps maintain focus on other stages like priming or seating.

The RL550C wins on build flexibility due to its higher case capacity, reducing interruptions in your reload session and allowing for longer uninterrupted work cycles.

Accuracy and control: Manual vs Automatic indexing

Indexing is how the shell plate advances to the next station. The XL750 uses automatic indexing, driven by the ram stroke. The RL550C uses manual indexing via a handle.

Manual indexing gives you complete oversight. You verify each case is seated before moving to the next station. This is critical for long-range precision loads where one mis-seated case can ruin a group. It allows you to catch a stuck case or a misaligned primer immediately, preventing a chain reaction of defective rounds.

Automatic indexing is faster but offers less verification. The machine trusts the cycle. If a case sticks or feeds poorly, you may not notice until later in the process. This is why many precision shooters prefer the manual control of the 550 series, as it enforces a slower, more deliberate pace that catches human error early.

The RL550C wins on accuracy because manual control allows for tighter quality assurance at every single round, which is essential for competitive or high-performance applications.

Speed and workflow: When volume is the priority

Speed is the primary selling point of the XL750. Because indexing is automatic, the cycle is continuous. You can crank through thousands of rounds of high-volume target ammo faster, making it ideal for shooters who load large quantities of common calibers for practice.

The RL550C is slightly slower per round due to the manual handle pull. However, for mixed loads or where you are changing calibers often, the removable toolhead on the 550 series makes switching easier. You can store settings for different calibers on separate toolheads, reducing setup time between projects. There is more on comparing rl550c and hornady in a separate guide.

If you are only loading one short cartridge at a time for a competition, the XL750’s speed is the deciding factor. If you load multiple calibers or value the pause for inspection, the 550 is better. The trade-off is that you sacrifice some top-end speed for the ability to stop and check each stage manually.

The XL750 wins on pure speed for high-volume, single-cartridge production runs where the goal is simply to finish the load as fast as possible.

Ease of use and value for new vs experienced

Both machines are complex. They require careful setup of powder measures and die spacing. The XL750 is often considered more ‘set and forget’ due to its automatic nature, which appeals to shooters who want to minimize physical effort during the reload process.

The RL550C requires more attention to detail. You must pull the handle to index. This keeps your mind on the task. For new reloaders, the automatic XL750 might seem easier, but it hides errors. The 550 teaches you the process by forcing you to engage with each step of the reloading cycle.

Value depends on what you buy it for. If you value time and bulk loading, the XL750. If you value consistency, flexibility, and learning the fundamentals, the RL550C. The 550 is also better for shooters who want to understand exactly how a progressive press works under the hood.

The RL550C wins on ease for precision users who want to stay engaged with the process and are willing to trade speed for control and learning opportunities. There is more on dillon 750 vs 650 in a separate guide.

Which should you buy?

• Pick the Dillon RL550C if you load mixed calibers, long-range precision ammo, or want to inspect every round manually and learn the progressive process.
• Pick the Dillon XL750 if you only load short cartridges like 9mm or .223 and need to reload large volumes quickly for practice.
• Stick with your current press if you are a new reloader; neither machine is a good first press due to their complexity and the risk of feeding issues.

Most shooters who ask this question are moving up from a turret press and value accuracy over raw speed. In that case, the 550 is the safer, more versatile choice that will serve you well as your skills improve.

The bottom line

Frequently asked questions