Double-Alpha Academy
Primer Size
€5.00 Reward points
 Item in Stock | Usually dispatched within 24 hours

Latest reviews

Jorgen van ***
Tuesday 11 May, 2021
Nice tool, but takes a lot of adjusting. Took me a couple if weeks and then it works, however, you have to stick to one brand of primers. Take a different brand and you can start over again with adjusting... also you have to lubricate it with graphite for smooth operation
Rating: (3 of 5 Stars!)
Charles ***
Wednesday 07 April, 2021
It's not as fast as I imagined it would be, but still nice not to have to load primers in the tubes by hand.
Rating: (3 of 5 Stars!)
Shawn ***
Sunday 21 March, 2021
This is second review. Let's see if it makes the website. The product itself is poorly constructed, all plastic, and has multiple choke points. Metal screws in plastic that need constant adjustment will lead to wear and the screws nolonger functioning. The hole the the primers fall into the tube...
Rating: (2 of 5 Stars!)
Friday 12 March, 2021
As previously stated, I did have to clean hopper with a plastic polish to get primers to stop sticking, ( I used Plexus ) and I had a lot of trouble with the vibration not effectively getting primers to flow properly. Directions stated that I might have to loosen screws holding hopper to base....
Rating: (3 of 5 Stars!)
Kurt ***
Friday 05 March, 2021
This unit doesn't like Winchester primers. However, Josh got me straightened out and now the unit is running great. I don't like how the primer tube angles back toward the machine. It is awkward to use like that as everything is facing away from me.
Rating: (3 of 5 Stars!)
Adam ***
Thursday 04 March, 2021
I was excited to receive this product though, with some trepidation due to reviews I read about poor functionality/reliability. Unfortunately, when I received the product, it had some of the same problems others had reported. I tried to troubleshoot myself using the guides for doing so, to no...
Rating: (4 of 5 Stars!)
Important Note
Some types of primers are tacky/sticky. These may not slide well through the slots in the Primer Pro Disk or down the Exit Ramp. This can lead to a slow output rates and/or poor exit ramp/hole performance. One simple solution to this issue is to apply a little silicon to the primers before loading them into the Primer Pro, as shown  here.

Another effective solution is to periodically clean/lube the Primer Pro plastic parts using a plastic cleaner/Polish or dry lube, such as Pledge, Cockpit spray cleaner or the likes. As shown  here.

With one or the other solution applied, all types of Small Primers can successfully be used.

The Primer-Pro is available for small primers only!


US PATENT 10,718,599


The PRIMER-PRO by Double-Alpha is a unique new approach to handling primers, and the solution reloaders have been waiting for!

As any reloader knows well, manually filling primer tubes can be the most time-consuming and aggravating step in the whole reloading process, and few good automated solutions exist.

Until now!

The PRIMER-PRO by Double-Alpha is an innovative patent-pending design which departs from the traditional vibratory bowl solution used by all other automated primer tube machines. The PRIMER-PRO uses a collator type solution where the primers are allowed to exit the bowl through 20 precisely formed channels, ONLY if they are orientated in the correct direction (Anvil side up). If they are Anvil down, they will not pass through the channel, and rather slide back into the bowl as their channel reaches the top of the rotation, to enter again later, correctly oriented.

This rejection-type design makes it practically impossible for a primer to enter the output channel if incorrectly orientated, making this device extremely reliable. During development, we ran many successful tests in which 100 tubes were filled (10,000 primers fed) without a single up-side-down primer!

As the primers slide down the covered output-chute, they pass through an optical sensor which counts them and stops the collator once 100 primers have been counted into the primer-tube. The electronic processor board also monitors the sensor and is programed to stop the collator if, for whatever reason, primers hang-up on the exit hole and stack up along the ramp. The collator will be stopped before the primers stack all the way up and jam the collator. In such a case, the LED will flash quickly to indicate there is a problem. Once cleared, pressing the start button again will allow the collator to run and the count will continue from where it was stopped. Or alternatively, a long press on the button will start the count a new.

One of the most innovative design solutions of the PRIMER-PRO is the Output Actuator Arm, which is activated by a lever system off the Timing Disk at the bottom of the Collator Assembly. This Output Actuator Arm slides the primers from the bottom of the ramp slide, moving them over to above the output hole, holding them there for a split second to ensure they are static, horizontal and stable, and then retracting to allow the primer to fall cleanly down into the awaiting primer tube. This dynamic solution for the exit hole greatly reduces the chance of primers hanging up while exiting into the tube, a problem common with other automated primer fillers.

The PRIMER-PRO is currently available only for Smaller Primers, and handles Small-Rifle or Small-Pistol Primers equally well. A Large primer version may be offered in the future.

One Magnetic Collar for a Dillon Primer Tube is included with the unit. A PRIMER TUBE IS NOT INCLUDED! Since the PRIMER-PRO can refill a single Primer Tube faster than you can use the previous 100 primers in any reloading press, only one tube is strictly necessary.

However additional Magnetic Collars can be purchased separately, for those who prefer to fill multiple tubes before starting their reloading session.

The unit is powder by a 12v DC power supply (dual voltage, 110-230), which ships including a suitable European and US prong set (included). The power cord is 2 meters (6ft) long, and includes an ON/OFF switch in the cable.

NOTE: Primer tube not included. 

Primer-Pro Manual: Download-English

Primer Pro - Troubleshooting

Primers sliding too slow down the exit ramp on the Primer Pro

The cause: The cause is increased friction between the primer and the ramp due to some kind of oil or lube that remains on some types of...

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