Electronic vs. Mechanical Powder Dispensers: Pros and Cons

Most reloaders of recent metallic cartridges use a powder dispenser (or “powder measure”) to realize this purpose. The unique dispensers had been mechanical. They require the consumer to function a lever up and down, which rotates an inner drum that catches and dispenses a set quantity of powder. Newer years have seen the rise of digital powder measures. Most of those units use an inner motor and scale to trickle the right amount of powder onto a pan, which is then used to load every cartridge individually.

After all, newer isn’t at all times higher. Mechanical and digital powder throwers have prices and advantages, and the fitting one for you’ll rely on what cartridges you reload, what you utilize them for, and the way a lot time it’s a must to spend on the reloading bench.

However no matter you utilize, it has to work. The results of loading and firing an improper powder cost could be lethal, so you must consider carefully about your determination and weigh the professionals and cons of every.

The proper powder thrower can be quick and exact and wouldn’t price an arm and a leg. However this world isn’t good, so that you’ll have to decide on two of those three classes.

For this comparability, I used the RCBS Uniflow mechanical powder measure and the RCBS ChargeMaster Supreme digital powder measure. There are different types and types of dispensers, however these are two of the most well-liked for hunters loading rifle cartridges with a single-stage press. A progressive press opens up an entire world of computerized dispensers, however we’ll go away that may of worms closed for now.

Out of the gate, the mechanical measure has one apparent benefit: price. The Uniflow is barely about $100 whereas the ChargeMaster will run you north of $400. There are cheaper digital measures that work simply advantageous, and if you wish to be exact on a finances, you’ll be able to at all times use a trickler and a scale. However I don’t see any digital powder measures for lower than $200, which is twice what you’ll pay for many mechanical throwers.

A mechanical thrower will prevent cash, and it’ll prevent time as nicely. In the event you arrange your instances in a case holder, you’ll be able to merely maintain every case below the mechanical thrower, work the lever, and cargo every one. It takes possibly two seconds per case, which implies you are able to do a full set of fifty in lower than two minutes. Even including time for double-checking the cost weight bumps up that point to about 5 minutes for 50 cartridges.

An digital dispenser, alternatively, can take 10 or 15 seconds to dispense every cost, relying on the mannequin. The ChargeMaster Supreme works by trickling powder into the pan till it reaches the proper weight. It may well do the primary 90% of the cost in a short time, however the final 10% is slowly disbursed till the proper weight is reached. The “Be taught” function on this mannequin cuts the time roughly in half by calibrating the dispenser to the powder you’re utilizing. Nevertheless, as you’ll see under, you sacrifice some precision by growing the velocity.

Quibbling over 5 or eight seconds would possibly sound foolish, however as any reloader can let you know, saving 10 seconds on every operation (sizing, trimming, loading, and many others.) can add up over the course of 100 or 500 cartridges.

In case your precedence is to churn out many cartridges shortly, a mechanical thrower is the way in which to go. However in case you care about maximizing precision and loading precisely the identical quantity of energy in every case, an digital dispenser will win nearly each time.

That’s as a result of it combines a trickler with a scale to dispense precisely the correct amount of powder. In the event you’re keen to attend for it, you’ll be able to ensure you have the identical powder cost in each cartridge. Except you weigh every cost from a mechanical thrower and both alter it or put it again within the hopper and check out once more, a mechanical simply can’t compete.

That being mentioned, you is perhaps shocked to learn the way exact a mechanical dispenser could be. I disbursed 20 expenses with my mechanical and 20 with my digital utilizing two various kinds of powder shapes: stick and flake. I used the digital ChargeMaster on “Be taught” mode to attempt to compete with the mechanical’s velocity. As you’ll be able to see, whereas the ChargeMaster held a transparent edge with the stick formed powder, the smaller flake powder was remarkably shut.

Customary deviation expresses how a lot a set of information factors depart from the common of these factors. On this case, it’s expressed as a share (additionally referred to as the “coefficient of variation”) as a result of every dispenser was set for various cost weights.

Mechanical throwers have hassle with the bigger, rod-shaped powder grains as a result of they get caught within the rotating drum. The lever generally catches on its manner up and the ensuing powder cost deviates extra from the common. You may mitigate this challenge by throwing one other cost at any time when that occurs, however that slows down all the course of. Many standard big-game rifle cartridges work nicely with that sort of powder, so it’s one thing to remember if that’s what you intend to reload.

Rifle powder grains can have completely different sizes and shapes that can impression the precision of a mechanical thrower.

However the mechanical dispenser held its personal with the smaller, flaked powder. The load unfold was 0.01 grains bigger, however the SD was almost an identical. The ChargeMaster continues to be extra correct in case you’re keen to attend a number of seconds longer, which isn’t an issue in case you load a bullet in every case because the powder dispenses. Nonetheless, as somebody who makes use of a mechanical dispenser for all my apply ammo, I used to be happy to see how constant these expenses are.

For handgun cartridges or vary ammo, a mechanical thrower is clearly the way in which to go. It’s cheaper, quicker, and constant sufficient that you just gained’t discover a dip in accuracy. And, frankly, if I don’t anticipate a shot past a pair hundred yards, I’d be comfy utilizing a mechanical thrower for that ammunition. At that distance, seven-hundredths of a grain isn’t going to make a lick of distinction in a 6.5 Creedmoor or .308 Win. So long as you confirm the cost weight each 10 or 20 rounds, you need to use a mechanical thrower for looking ammo in some conditions.

However possibly you’d quite not go away it to probability. In the event you care about excessive precision and need every cartridge to have precisely the identical quantity of powder, an digital dispenser is the most suitable choice. I used a hand-trickler for a very long time, and the ChargeMaster Supreme is a lot quicker and extra handy, I’ll by no means return. It provides me the peace of thoughts to know that every cost is precisely the identical, and all I’ve to do is hit a number of buttons and it really works robotically.

Fashionable powder dispensers could not have been a lot use to Daniel Boone within the forests of colonial America, however I’m grateful smarter folks than me have discovered methods to maintain expenses protected, constant, and efficient.