Pocket reamer for 5.56 brass ?

lebomm · Sep 9, 2016

I'm with the RCBS swager crowd. Been using my press-mounted unit for decades, rifle and pistol, large and small, with completely satisfactory results. Had a Lyman reamer first, removed too much brass, IMHO. Bought the RCBS unit, never looked back.

Larry

ericflanders@sbcglobal.ne · Sep 9, 2016

gwpercle said:
I've been using the Lyman hand tool to remove the military crimp for decades....I just finished doing 500 military 7.62 and in the past hundreds of 30-06. There is no way the primer crimp removing tool did that.
What it looks like is you chucked a case deburring tool in the drill and used the inside neck deburring part to ream out the pocket. Wrong tool , too much brass has been removed...don't shoot those.
You can use that tool to remove just the crimped/diplaced metal from around the pocket edge , not nearly as much as in photo , and then finish up with a primer pocket reamer and then a primer pocket uniformer. Safest way is by hand....the power drill just went way too far .
Make the pockets look like a factory case pocket....no factory case will look like that , compare them .
Gary

This is the tool I used. Chucked up the reamer bit. I've done more since but was much more carful not to go that deep. I only did a half dozen or so that deeply.

[ame="https://www.amazon.com/Lyman-Case-Prep-Multi-Tool/dp/B004MCMCYE/ref=sr_1_2?ie=UTF8&qid=1473466821&sr=8-2&keywords=lyman+case+prep"]Amazon.com: Lyman Case Prep Multi Tool: Sports & Outdoors[/ame]

ericflanders@sbcglobal.ne · Sep 9, 2016

Would have thought that the reamers would have been designed to bottom at the correct depth and bevel?? Guess not. Thanks for all the suggestions.

S&WIowegan · Sep 10, 2016

[email protected] said:
Would have thought that the reamers would have been designed to bottom at the correct depth and bevel?? Guess not. Thanks for all the suggestions.

Are you saying you used the large tools at each end of the holder? Those are for chamfering the mouth of a brass case inside and outside. The correct tool for decrimping is the black small ones. No wonder.

ericflanders@sbcglobal.ne · Sep 11, 2016

I did use the small black reaming tool for small primers, not one of the de-burring or chamfer bits.

gregintenn · Sep 11, 2016

I just give em a twist with my chamfering tool.

hdwhit · Sep 16, 2016

I use a Hornady primer pocket reamer. Put it in, give it a couple of twists and the beveled part of the cutting head removes just enough of the crimp to let a new primer be inserted.

It also works pretty well on staked primers.

cervri · Sep 25, 2016

Cdog said:
For me the least effective method is the RCBS die type press mounted system. A total waste of effort.

Many years back I'd quit fooling with anything with crimped pockets. If not for bench tools like the RCBS and Dillon products, I still wouldn't fool with it.

I agree 100 percent...

Fishslayer · Sep 28, 2016

I have the hand twisty reamers. I haven't used them since my friend bought the Dillon stand alone pocket swager. If I was doing any quantities and my buddy didn't own one I would buy one for myself. Reamers are a PITA.

Moe Mentum · Sep 30, 2016

Hornady is the one for removing military crimps, I just did 1000 Lake City brass cases, and every one seated a primer with ease.

hdwhit · Oct 1, 2016

Ivan the Butcher wrote:

Most of the shall primer pocket reamers are intended for uniforming the pockets, not crimp or stake removal.

RCBS and Hornady both sell primer pocket reamers that will remove the crimp from a primer pocket. They both also sell primer pocket uniformers that are meant - as their name implies - to make the primer pocket of uniform dimension.

The two types of devices should not be confused.

The primer pocket reamers sold by both RCBS and Hornady (and possibly others, but I have no experience with them) will effectively and safely remove the crimp from military brass.

hdwhit · Oct 1, 2016

Moe Mentum wrote:

Hornady is the one for removing military crimps, I just did 1000 Lake City brass cases, and every one seated a primer with ease.

I just did 194 mixed headstamp cases with the Hornady one and 193 seated a primer; one did not.

No system is foolproof.

MarkDozier · Oct 1, 2016

i used a 1050 to deprime, swage, trim 5.56 cases

Moe Mentum · Oct 6, 2016

scattershot said:
I use a 1/2" 45 degree countersink bit. Just mount it in a drill and kiss the primer pocket to remove the crimp.

Good advice, I use one as well. Works better than any crimp remover I have tried, and I have tried many.

Pocket reamer for 5.56 brass ?

lebomm

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S&WIowegan

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gregintenn

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hdwhit

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cervri

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Fishslayer

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Moe Mentum

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hdwhit

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hdwhit

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MarkDozier

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Moe Mentum

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