Thompson Center Magnum Brass Powder Measure

Description

You’re at the reloading bench, trying to get consistent charges for your .45-70 or .450 Bushmaster. You need something solid, simple, and that won’t break the bank. Look, the digital scale is great, but sometimes you just want a mechanical measure you can trust for those stout magnum pistol and rifle loads. That’s where the Thompson Center Magnum Brass Powder Measure comes in.

The Thompson Center Magnum Brass Powder Measure is a classic, manually-operated brass powder measure designed for dispensing consistent volumes of smokeless powder, specifically tailored for larger magnum pistol and rifle cartridges. It’s a durable, no-frills tool that provides reliable metering for reloaders who prioritize simplicity and value over electronic features. For a price of $13.91, it represents a significant cost savings compared to many modern composite or adjustable measures, making it a true budget-conscious workhorse. This tool is all about practical function, offering a straightforward solution for a specific reloading task without any unnecessary complexity.

Its primary advantage is its dedicated design. Unlike universal measures you have to tweak endlessly, this one is built with a specific charge volume range in mind—perfect for cartridges like the .44 Magnum, .454 Casull, or even black powder substitutes for muzzleloaders. The solid brass construction isn’t just for looks; it provides heft to sit steadily on your bench and ensures the mechanism wears in, not out, over time. You get a tool that feels substantial in hand, not a lightweight plastic piece that feels cheap. Here’s the thing—it fits out of the box with standard 7/8″-14 threaded press mounts, so you can get it set up and running in minutes on most single-stage presses like those from RCBS or Lee.

The operation is refreshingly simple. You fill the hopper, work the lever a few times to settle the powder, and then throw your charges. There’s a satisfying mechanical certainty to it. While it may not have the micro-adjustability of a premium target measure, its fixed cavity is engineered for consistency within its intended range. This makes it an excellent dedicated measure for a single, high-volume magnum load, saving you from constantly readjusting your primary measure. The unit weighs approximately 1.2 pounds, giving it that stable, quality feel on the bench.

Specifications

Material	Solid Brass Body & Mechanism
Thread Size	Standard 7/8″-14
Primary Use	Magnum Pistol & Rifle Cartridges
Operation	Manual Lever-Action
Approx. Weight	1.2 lbs
Style	Fixed Cavity Powder Measure

Pros: The cost is the biggest win—it’s hard to find a solid metal powder measure at this price point. The brass construction is durable and naturally corrosion-resistant. Its simplicity means there’s very little to go wrong, and it’s quick to set up for a specific load. It’s a classic design that has served reloaders well for decades, proving its reliability.

Cons: The fixed cavity is a double-edged sword; it’s not designed for fine-tuning across a wide range of charge weights. You’re buying it for a specific task. It also lacks a modern baffle system, so you may need to develop a consistent operating rhythm to maintain absolute charge weight uniformity as the hopper empties. The overall height is roughly 6.5 inches, so ensure you have clearance on your press setup.

So who is this for? It’s ideal for the reloader who shoots a lot of one magnum caliber and wants a dedicated, set-and-forget measure on their bench. It’s perfect for the hunter loading .44 Mag or .45-70 for the season who doesn’t want to tie up their primary measure. It’s also a fantastic, affordable entry point for a new reloader looking to add a second measure for specific tasks without a major investment. This product is available at firearms-missouri.com for Missouri residents and nationwide.

Frequently Asked Questions

Q: Can this measure be adjusted for different charge weights?

A: No, it is a fixed-cavity measure. It is designed and calibrated at the factory to throw a consistent volume of powder suitable for a range of magnum cartridges. It is not a micrometrically adjustable measure for precision rifle target loads.

Q: Is it suitable for small charges of pistol powder, like for 9mm?

A: It is not the best tool for that job. Its cavity is sized for larger magnum charges. For smaller standard pistol or rifle charges, a standard adjustable powder measure would be a more versatile and appropriate choice.

Q: Does it come with a mounting bracket?

A: It features the standard 7/8″-14 threaded base for direct mounting to a compatible press or stand. It does not typically include a separate bench-mounting bracket; it’s designed to thread directly into your press’s available accessory hole.

If you need a straightforward, durable, and affordable tool to handle your magnum reloading tasks, the Thompson Center Magnum Brass Powder Measure is a sensible and cost-effective addition to your bench.