Frankford Arsenal DS-750 Review: Accuracy & Use

You need a scale that tells you if your powder charge is off by a tenth of a grain without the complexity of an auto-dispenser. This review breaks down the DS-750's real-world accuracy, setup quirks, and where it beats or loses to pricier rivals.

Who It Is For (and Who Should Skip It)

The DS-750 fits reloaders who use a manual powder measure or hand-portion charges. It is a weighing tool, not a dispensing system. Understanding this distinction prevents frustration during your first week on the bench. The other half of this decision is arsenal x-10 reloading kit.

• Get it if: You value a dedicated, low-cost scale for verifying powder weights and bullet mass. It is also perfect for weighing components like brass or primers if you do not have a separate scale for them.
• Skip it if: You want the scale to pour powder for you. That requires an auto-dispenser like the Lyman Gen 6 or RCBS Chargemaster. If your workflow relies on high-speed batch loading without manual verification steps, the lack of auto-dispense will slow you down significantly.

Many reloaders start with a manual setup to keep costs down. The DS-750 is the bridge between a simple shop scale and a high-end automatic system. It does not offer the convenience of ‘set it and forget it,’ but it provides the feedback loop necessary to ensure your loads are safe and consistent.

What Stands Out: Specs That Matter

The core spec is 750 grains (50 grams) capacity with 0.1 grain resolution. This covers every standard rifle and pistol cartridge, including large magnums. You will not hit the capacity limit even when weighing a full 50-grain charge for a huge bore.

Two features make it user-friendly on the bench:

• Tare Function: Lets you zero out the weight of your specific powder pan or container. This is essential if you use different pans for different powders. It saves you from doing mental math every time you switch.
• Included Calibration Weight: Most cheap scales omit this. Having it in the box allows you to verify accuracy periodically. This is the most important accessory for a reloading scale, as it proves the tool is working correctly.

The display is an LCD with a blue backlight, readable in low light. This is a small but useful detail for those who reload in dim workshops or basements.

The unit runs on two AAA batteries, which is convenient for moving the scale to different locations but may drain quickly if left on. The auto shut-off after 60 seconds helps preserve battery life but can be interrupted if you step away. If that sounds like your bench, read up on performance of the x-10 next.

The Drawbacks You Should Know

Accuracy is only as good as your environment. The DS-750, like all digital scales, is sensitive to vibration and air currents. If you place it next to a tumbler or a vacuum, the readings will drift. There is more on frankford progressive press details in a separate guide.

• Manual Only: You must trickle powder by hand. There is no motorized feed or stop button. This requires patience and a steady hand, especially with small charges like .223 or 9mm.
• Auto Shut-Off: It turns off after 60 seconds of inactivity. This saves battery but can be annoying if you pause between shots or wait for a companion to finish reading the manual. You must hold a button to keep it on during long weighing sessions.
• No AC Adapter: It runs on batteries. For a permanent bench station, you may need to keep spare AAA batteries nearby or buy a universal AC adapter separately. Frequent battery replacements add to the long-term cost of ownership.

Also, the ‘counting’ function is useful for identical parts, but do not expect it to replace a scale for weighing powder. It counts items based on a reference weight, which does not apply to variable powder charges. Relying on it for powder quantities will lead to dangerous errors.

Setup and Use Tips for Better Accuracy

Getting consistent 0.1 grain readings requires setup discipline. The hardware is only half the equation; your technique determines the final result.

1. Surface: Place the scale on a solid, level surface. Avoid the edge of a workbench or near air conditioning vents. A thick rubber mat underneath helps absorb vibrations from nearby presses or tumblers.
2. Stabilize: Let the scale sit for 30 seconds after turning it on to zero out initial drift. Rushing this step often leads to the first reading being off by several grains.
3. Tare Every Time: Press tare with the pan on the scale. If you switch pans, re-tare. Do not assume the scale remembers the weight of different containers.
4. Trickle Slowly: Pour powder from a height of 2-3 inches. Watch the display until the last 10 grains, then close the pour spout slowly. Rushing the final pour is the most common cause of overcharging.

If the display flickers or ‘drifts,’ check for air currents. Turn off fans and close windows. The scale works best in a still environment. Wind from an open door can push light powder into the pan, skewing your weight by more than a grain.

Alternatives Worth a Look

If the DS-750 feels too basic, here are two upgrades that change your workflow. The other half of this decision is calibrating the seating depth with a micrometer.

• Lyman Gen 6: An auto-dispenser. It measures and pours powder. This is a good step up for high volume, but it costs more and requires more maintenance. You must be comfortable troubleshooting mechanical parts.
• RCBS Chargemaster: A heavier-duty auto-dispenser with longer proven reliability. It is often preferred for very high-speed production runs where downtime is a concern.

For most hand-loaders, the DS-750 is the smart money. It does the job without the mechanical complexity of a dispenser. You only need to step up if speed, not just accuracy, is your primary bottleneck. If you load fewer than 100 rounds a week, the time saved by an auto-dispenser may not justify the extra cost and maintenance.

The bottom line

Frequently asked questions