Dillon XL650 XL750 Ammo Counter V3

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Take Note - Be sure to set the buck convertor to 5 volts. There is also a jumper on the Low Level Relay that needs to be set to low (L) so the toggle switch works. If it's set on high, then you won't be able to make manual adjustments to the count.

Update 9.12.25 - Added separate number and slide reducer files so you can print in multiple colors.

This is an optical ammo counter that uses an IR Beam Sensor to count your rounds.

All new V3 model is more accurate than my old Ammo Counter. Thank you everyone for all your great feedback on the old counter!

I tested this with 500 rounds of 9mm. The results were as follows:

Group 1: 102 rounds counted : 100 actual

Group 2: 100 rounds counted : 100 actual

Group 3: 100 rounds counted : 100 actual

Group 4: 100 rounds counted : 100 actual

Group 5: 100 rounds counted : 100 actual

The new version now uses 2 IR sensors and is a lot more accurate than my old counter.

I have also made the following improvements

1. Added a shield to prevent the Case Insert Slide from getting caught on the sensor mount
2. Added an ammo chute reducer to better control the rounds coming out of the chute and reduce tumbling
   1. There are multiple sizes. I found that size #8 worked best for 9mm
3. Modified the sensor mount so all parts of the mount do not come in contact with the ammo rounds reducing the chance of ammo getting stuck while exiting the chute

If you are upgrading from my previous round counter you'll need new 5mm IR sensor beams, print the new sensor mount, and print the new sensor box and back.

List of materials used:

• 5mm IR Break Beam Sensor - https://www.amazon.com/dp/B0DX1FVDF2 (you'll use 2 receivers and 1 transmitter)
• Digital Counter – https://www.amazon.com/dp/B016U4IXSU
• Headphone Jack - https://www.amazon.com/dp/B06XG3YTC4
• Headphone Cord - https://www.amazon.com/gp/product/B08KSTBQ27
• Buck Convertor - https://www.amazon.com/gp/product/B07PDGG84B
• Power Supply - https://www.amazon.com/gp/product/B077PW5JC3
• 12V Power Barrel Socket - https://www.amazon.com/dp/B01N8VV78D
• On/Off Switch - https://www.amazon.com/dp/B07Y1GDRQG
• Momentary Switch - https://www.amazon.com/gp/product/B0CQCHR6N4
• Momentary Toggle - https://www.amazon.com/gp/product/B07XMJ1PDF
• Low Level Relay - https://www.amazon.com/dp/B09G6H7JDT
• M3 Screws - https://www.amazon.com/dp/B078V3YCF6
• M3 Inserts - https://www.amazon.com/gp/product/B08BJD3W4X

Overall I'm very happy with the performance of this new counter sensor and I hope you find it improved as well.

View all my models here.