Key Highlights
- Annealing machines split into two families: induction (like the AMP Annealer) and direct flame (like Bench Source and Annealeez).
- The AMP Annealer measures each piece of brass and applies a calibrated amount of energy, giving very consistent results with no flame involved – at a premium price.
- Bench Source uses direct flame annealing with a rotating case carrier and is a well-known step up from a manual torch setup. You do need to monitor and adjust the torches as propane pressure changes.
- Annealeez is widely regarded as the most cost-effective option, using a simple rotating wheel design to pass cases through a flame at a fixed dwell time.
- Our premium reloading equipment guide already covers why annealing matters for shot-to-shot consistency. This guide focuses on choosing between machines once you’ve decided to anneal.
Introduction
Annealing softens the case neck and shoulder by heating them to a specific temperature and then letting them cool. This process reverses the work-hardening that builds up every time you fire and resize brass. We’ve already covered why that matters for consistency in our guide to premium reloading equipment. What that guide doesn’t do is compare machines side by side. So if you’ve decided annealing is worth doing, this is about which machine actually suits your budget and your volume of brass.
Induction vs. Flame Annealing
Induction machines heat the case using an electromagnetic field rather than an open flame. There’s no gas, no naked flame, and the machine can be calibrated to a specific temperature for your brass and calibre. Flame annealing, by contrast, passes the case neck through (or past) a torch flame for a set amount of time. It’s simpler mechanically and generally cheaper. But it depends more on the torches being set up correctly and staying consistent as you work through a session.
AMP Annealer: Induction, Calibrated, Premium
Many competitive reloaders consider the AMP Annealer the benchmark induction machine. It measures the response of each piece of brass and applies a calibrated amount of energy tuned to that specific brass and calibre. This is a more precise approach than just running a fixed timer. Each case takes only a couple of seconds, and switching calibres takes seconds rather than a full re-setup. There’s no flame, fumes, or open gas to manage. The trade-off is price. The AMP only really makes sense if you’re a serious competitor reloading regularly, or simply don’t have a budget ceiling for this part of your kit.
Bench Source: Flame Annealing, Proven, Mid-Tier
Bench Source is one of the best-known flame annealers. It’s often the natural next step for reloaders moving up from annealing cases by hand with a torch and a drill. It uses a rotating case carrier to pass brass through a torch flame at a consistent rate. The catch is that you still need to set up and monitor the torches yourself. Propane pressure drifts over a session. If you don’t keep an eye on flame height and timing, consistency between the first case and the two-hundredth can drift too.
Annealeez: The Budget-Friendly Entry Point
Most reloaders regard Annealeez as the most cost-effective machine of the three. It uses a simple rotating wheel that carries cases past a flame at a fixed dwell time. That gives a repeatable process without the price tag of an induction machine. It won’t give you the same brass-specific calibration as an AMP, but for a club-level reloader wanting consistent, repeatable annealing without a major investment, it’s a sensible place to start.
Comparing the Three at a Glance
| Machine | Method | Consistency | Best For |
|---|---|---|---|
| AMP Annealer | Induction, brass-calibrated | Very high, case-by-case measured | Serious competitors, no fixed budget ceiling |
| Bench Source | Direct flame, rotating carrier | Good, depends on torch setup and monitoring | Reloaders stepping up from manual torch annealing |
| Annealeez | Direct flame, rotating wheel | Good, fixed dwell time | Budget-conscious club reloaders wanting a repeatable process |
Which Should You Buy?
If cost isn’t the deciding factor and you’re reloading enough volume to justify it, the AMP Annealer removes the most variables and the most guesswork. If you want proven flame annealing and don’t mind keeping an eye on your torch setup, Bench Source has years of use behind it in the competition community. And if you’re mainly trying to stop inconsistent neck tension from limiting your groups without a large outlay, Annealeez gets you a repeatable process at a fraction of the cost of the other two.
Conclusion
None of these three machines is a bad choice – they simply sit at different points on the price-versus-hands-off-consistency curve. Work out how much of your reloading budget annealing genuinely deserves relative to your dies, brass, and barrel. Then pick the machine that matches it, rather than assuming you need the most expensive option to see a benefit.
Frequently Asked Questions
Is annealing necessary for club-level competition shooting?
It isn’t essential to get started. But most shooters find it pays off once they’ve fired and resized brass several times, because it keeps neck tension consistent from load to load rather than letting it drift as the brass work-hardens.
Is induction annealing actually better than flame annealing?
Induction machines like the AMP remove more of the human variables, since the machine measures and calibrates the energy applied to each case. A well set up and carefully monitored flame annealer like Bench Source or Annealeez can still produce excellent, consistent results – it just asks more of the operator to keep it that way.
How often does brass need annealing?
This varies by calibre, brass brand, and how hard you’re resizing, but many competitive reloaders anneal every one to three firings. Watching for increased neck-sizing force or inconsistent neck tension is a good practical signal that it’s due.
Can I anneal brass without a dedicated machine?
Yes – a torch and a drill or case-spinning jig is the traditional starting point, and plenty of shooters get good results this way. A dedicated machine mainly buys you repeatability across a large batch rather than doing anything a careful manual process fundamentally can’t.