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550 setup help


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I am trying to figure out how to set up my 550 for processing .223.

I have my decap die in station 1, and my rt-1200 trimmer in station 3.

When/where do I neck size? If I set it up to neck size during my reloading process, what do I do about lube for the neck size die when I am dropping powder on the next station?

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I am trying to figure out how to set up my 550 for processing .223.

I have my decap die in station 1, and my rt-1200 trimmer in station 3.

When/where do I neck size? If I set it up to neck size during my reloading process, what do I do about lube for the neck size die when I am dropping powder on the next station?

Are you reloading for a bolt gun or an Auto?

If an Auto, I would FL resize.

I decap and size all of mine on a Dillon 550B, then tumble the lube off and trim.(Forester trimmer)

Next I run them back through the Dillon, prime, drop powder and seat bullet and crimp.

Not sure how you would incorporate all of what you mentioned on a 4 stage tool head.

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I am trying to figure out how to set up my 550 for processing .223.

I have my decap die in station 1, and my rt-1200 trimmer in station 3.

When/where do I neck size? If I set it up to neck size during my reloading process, what do I do about lube for the neck size die when I am dropping powder on the next station?

Are you reloading for a bolt gun or an Auto?

If an Auto, I would FL resize.

I decap and size all of mine on a Dillon 550B, then tumble the lube off and trim.(Forester trimmer)

Next I run them back through the Dillon, prime, drop powder and seat bullet and crimp.

Not sure how you would incorporate all of what you mentioned on a 4 stage tool head.

I am full length sizing by using the rt-1200. it is my understanding I still have to resize the neck with an expander ball once I have sized and trimmed using this method. I could be wrong.

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When I loaded 223 on a 550, I deprimed & resized in station 1.

I then trimmed the brass but on a Gracey Trimmer so the RT1200 in station 3 seems fine to me.

Tumble to remove shavings and lube at that point.

I recommend a new tool head set up with either a neck sizing die or a universal decaping to make sure no media is in the flash hole. If you go necksizer, get one with a carbide ball. You should not need any lube for this procedure.

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I am trying to figure out how to set up my 550 for processing .223.

I have my decap die in station 1, and my rt-1200 trimmer in station 3.

When/where do I neck size? If I set it up to neck size during my reloading process, what do I do about lube for the neck size die when I am dropping powder on the next station?

Like you, I decap in 1 and trim (and full-length resize) in 3 with my 'trimmer' toolhead.

I lube with One-Shot and leave it on the case. (oh Jeez - not this again)

Remove primer crimp off the press. The Dillon tool is really nice. I have used others (CH Tool and Die).

I then run a regular size / decap / expander die in station 1 in my second 'reloading' tool head. Die is set so it never actually resizes the case, just expands the neck and clears the flash hole.

You could run an 'M die' if you weren't worried about the flash hole.

M-Die example

My RL-550 has a Dillon casefeeder with the 'adaptation' to .223 - really speeds this operation up. That thread is here.

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  • 2 weeks later...

This is how I do it works well for me

1. Clean Brass

2. Lube, Size & Trim on single stage set up with RT 1200B

3. Tumble to remove lube

4. Station One Neck Size, Decap & Prime

5. Station Two Powder

6. Station Three Seat Bullet

7. Station Four Light Crimp

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