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RCBS Lock-Out Reloading Dies
As Low As $53.99 Save Up to 26%
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Most Helpful Positive Review Great tool!
Its an excellent way to insure your loads are consistent and safe.
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Don't Reload With Out It

by nave, Verified Owner from FL, United States Written on July 6, 2025
I had been waiting to pull the trigger on the Lock out die and
now that I got it I am happy.
Would recommend: Yes
Was it helpful to you? Yes | No

This is great

by GC, from MN, United States Written on May 24, 2023
The lockout makes it obvious when I've made a mistake, and I'll know about it before 3 cases have made it into the press. I make much less mess with this, and that's always a good thing. It will sit in my press for as long as I reload pistol rounds.
Pros:
  • Catches mistakes fast
Cons:
  • Only works with straight walled cases
Best Used for:
  • All straight walled pistol or rifle cases
Would recommend: Yes
Was it helpful to you? Yes | No

Simple and effective

by Anthony Musich, from TN, United States Written on July 23, 2022
Easy to set up. This powder check die is no nonsense and does as advertised. Simple with no needed extras. Will stop the loading process cold no doubt that there is a problem with the powder charge. No beep or light to miss. The price is lower than the newer models out right now. Would buy again.
Would recommend: Yes
Was it helpful to you? Yes | No

Indispensable Tool

by happy trigger, from NC, United States Written on February 16, 2015
If you have ever had a squib load and a projectile stuck in your barrel then you need an RCBS Lock-out Die. I will not reload pistol loads with out one. When I first started reloading, I had a squib load that got stuck in the barrel of my .40 S&W. At first I didn't understand why my pistol would not lock into battery. I discovered that I was lucky. Evidently the power of the primer was just strong enough to lodge the projectile between the chamber and the barrel blocking the next round from fully locking into battery.

Reloading on a progressive press is wonderful, but it is still a complicated task. There are several things to monitor on each round. The casing must feed right side up in the first station. You must also monitor the powder in each and every casing. It is easier to get distracted than you might think. You might get lucky but I do not want to trust my hands and eyes to luck.

Using a powder that flows well is important. Using reliable powder charge equipment is important. But there are those occasions when something goes wrong. A short stroke, an unexpected clog, or an empty powder hopper, coupled with a momentary distraction can net an under charged casing. Some stoppage that needs to be adjusted, can net you a double charge. The Lock-out die will catch what you might miss.

I wish there was one that worked on my 223s.

I have two Lock-out dies. One for 9MM and one for 40s. They are worth their price. I have not had a squib since I began using ...
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Would recommend: Yes
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