Description
The Redding Competition PR-50 is the measure to reach for when you're loading big rifle cases and want every charge to land in the same spot. It's the fourth entry in Redding's "weight range specific" Competition lineup, and this one was built squarely around the precision rifleman and the cartridges that come with that game. The engineering target was roughly 50 to 60 grains, with a usable range that stretches from about 35 to 75 grains of most powders, which covers a lot of the popular long-range rifle rounds.
What Sets the PR-50 Apart
Instead of stretching one measure across every powder weight, Redding narrowed the focus and tuned the drum and metering chamber for this range specifically. Charge consistency comes from a precision-ground drum, a honed metering chamber, and a unique hemispherical micrometer-adjustable plunger. That cup-shaped plunger creates a powder cavity shaped like the bottom of a test tube, which helps cut down on the voids and irregular settling you can get with long-grain extruded powders. The micrometer itself is designed to reduce backlash as you dial it in, so getting back to a known setting is quick and repeatable.
Living With the Competition PR-50
Anybody who has run one of these will tell you it feels like a serious tool. The cast-iron frame and smooth, wear-resistant metering cylinder give it real heft and a slick stroke, a different world from lighter aluminum-bodied measures. Like the rest of the Competition series, it uses a slightly heavier rotating operating handle that helps you keep an even, uniform cadence through each throw, and that rhythm is a big part of consistent drops.
Getting the Most From Your PR-50
An adjustable powder baffle keeps a steady column of powder sitting above the metering chamber so your charges stay uniform as the hopper drains. A common tip from folks running this measure is to throw and dump several charges when you first fill it to let the powder settle before you trust the numbers. As always, these graduations are for reference only and are not grains, so verify your setting against a good scale before you load.
Key Specifications
- Manufacturer: Redding
- Model: Competition PR-50
- Manufacturer Part Number: 03900
- UPC: 611760039003
- Adjustment Type: Anti-backlash micrometer
- Metering Chamber: Rifle
- Engineering Target Range: Approx. 50-60 grains
- Ideal Use Range: Approx. 35-75 grains of most powders
- Powder Type: Smokeless
- Frame: Cast iron
- Plunger: Hemispherical micrometer-adjustable
- Bench/Press Mountable: Yes, mounting bracket included
- Country of Origin: United States
- Shipping Weight: 3.09 lbs
What’s Included
- Redding Competition PR-50 Powder Measure (drum and metering chamber pre-assembled)
- Operating handle
- Powder hopper
- Adjustable powder baffle
- Mounting bracket
- Instruction sheet
Frequently Asked Questions
What charge range is the Redding Competition PR-50 built for?
The PR-50 was engineered with a target range of about 50 to 60 grains, which is its sweet spot. Its ideal usable range stretches from roughly 35 to 75 grains of most powders. That covers a lot of the common long-range and big-game rifle cartridges.
Does the PR-50 come with a powder baffle?
Yes, an adjustable powder baffle is part of the design and keeps a consistent column of powder above the metering chamber for more uniform charges. Many users find it helps to settle the powder by throwing and dumping several charges when first filling the hopper. Adjusting the baffle height can also fine-tune how the powder flows.
Can the Redding PR-50 be mounted to a bench or press?
It ships with a mounting bracket and can be set up on a bench or an optional stand. The frame drops into the bracket and is secured underneath, which also lets you lift the measure out quickly to swap or dump powder. It works for left or right-hand operation.
Do the numbers on the micrometer tell me the grain weight?
No. The graduations are reference marks to help you return to a known setting, not actual grains of powder. Like all volumetric measures, you should always verify your setting against an accurate powder scale before loading.




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