Are you searching for a powder measure that has both large volume and precise micrometer measurements?
Look no further than the RCBS UPM-3 Competition Powder Measure.

A proper powder measure allows a handloader precise amounts in a quick manner. RCBS sent out their very popular RCBS UPM-3 Competition Powder Measure for my thorough testing and report to you, my readers. Here is a little look at what they list about their RCBS UPM-3 Competition Powder Measure:
The RCBS UPM-3 Competition Powder Measure combines the proven Uniflow Powder Measure with a powder baffle and Micrometer Adjustment Screw for even more precise measurements. The powder baffle controls the powder flow and the pressure of the powder column on the metering unit, while the Micrometer Adjustment Screw allows for precise adjustments to the metered charge. This also allows reloaders to record the number for future reference.
The handle can be positioned on either the right or left side, depending on your preference. It’s essential to note that this powder measure should be used in conjunction with an accurate powder scale for setting the original charge and checking charges occasionally during the run. Lastly, never use the Competition Powder Measure with black powder.
- Micrometer Adjustment Screw allows precise adjustments to the metered charge and lets reloaders record the number for future reference
- One Metering Cylinder and Screw for both Rifle and Pistol
- A single screw assembly can meter .5 to 100 grains of powder
- .10 grain accuracy with Micrometer for precise adjustments
- Quick Change Drain Attachment for quick powder drain capability
- Powder Baffle controls the powder flow and the pressure of the powder column on the metering unit
- Threaded hopper for easy removal
- 1 pound hopper capacity
- Ambidextrous design
- Cast iron construction
- Drain attachment and two drop tubes included
Quickly assembled and added to the side of one of my RCBS presses via the included very ingenious mounting bracket, I was ready to begin testing out the RCBS UPM-3 Competition Powder Measure.

The RCBS UPM-3 Competition Powder Measure is out of the way until a powder pour is needed.
Did I mention I do really appreciate that mounting bracket? That certainly frees up space on your reloading bench more than a stand alone mount.

This very informative video goes over all of the features of the RCBS UPM-3 Competition Powder Measure:
The Micrometer Adjustment Screw on the RCBS UPM-3 Competition Powder Measure is quite useful for those precise measurements and allows your record keeping to be so much easier.

Once you try the RCBS UPM-3 Competition Powder Measure you will wonder how you did without it before. It is right on the mark for powder drop accuracy, and can be adjusted to incredible precision. My bench time while testing the RCBS UPM-3 Competition Powder Measure was smooth and drama free. I highly recommend it for those reloaders who are serious about accurate powder measuring and want the very best equipment for the best accuracy obtainable to the home reloader.