How to use a full-length reloading dies?

Learning how to use a full-length die is extremely important. I realize there are several different types of this tool, but I’m not going to throw them all in one article. Quite frankly, it would be too long and potentially confusing to new handloader/reloaders.

With that out of the way, let’s begin. Shall we?

What is a full length reloading die?

Every time you fire a round through your rifle, the brass case will expand in size. This reloading die will return the brass case to a near-original state. If you don’t re-size the cartridge at a certain point, it will fail to fit in your rifle’s chamber, extract, or blow up because it is oversized. I have seen this happen.

A word to the wise: Don’t purchase a cheap FL die. Look at it this way: Every piece of ammo you produce will go through this tool. There is a reason competition shooters lay down a short stack of cash on quality/custom FL dies.

In this tutorial, we will be using a full-length Bushing die. If you want to know how to select the correct bushing size, (click here.)

Things you will need

Reloading press
Full-length bushing die with the correct size bushing
A set of calipers
Headspace gauge or comparator
A click-adjustable lock-ring
Case lube

Step one

Raise the ram on your reloading press. Next, thread your die into the press until it contacts the shell holder. You are now at your starting point for setting things up. We are using the Erik Cortina method because it’s simple and effective.

Step two

Using a fire-formed case, measure the shoulders. There are two different ways to do this. Either use a headspace gauge or your calipers with the attached comparator. Write that number down for later.

What is the difference between a gauge and a comparator? Click here to find out.

Step three

Apply dire wax to the previously measured case and run it into your full-length bushing die.

Step four

Now, measure the shoulders on your brass case again. Chances are you over-bump your shoulders. That’s okay because that’s what we’re looking for.

Let’s say you over-bumped your shoulders .008 and only want a .002 bump. Subtract the second number from the first.

Example
.008 – .002 = .006

Step five

Using your click adjustable lock ring, rotate the rings six clicks. Congratulations, you’re all done; it is that easy.

Conclusion

This method is fast and less wasteful than other commonly taught methods. The downside of using the method I just taught you is that you will most likely lose one case. However, I have certainly lost more cases using other techniques.

I hope this tutorial on how to use a full length die? has left you in good spirits.

Remember, shoot better than me. – Mac R

Disclaimer: Reloading/handloading can be hazardous to your health like many things in life. You take full responsibility when performing these procedures. 5 Gun Nation is not liable for your decisions. Don’t be an idiot; if you are, it is not our problem.

5 Gun Nations How-To series