Lees Press Construction

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Dan Newcombe

Well-Known Member

• Mar 26, 2026

• #1

Really stupid question but can you put one together wrong? When I’m sizing and de-priming brass the spent primers never go down the little tube for some reason, anyone else had a similar problem?

Cheers

 

M

moeggesit

Well-Known Member

Supporter

• Mar 26, 2026

• #2

Depends on the model, is the priming attachment in the way? Not uncommon for primers to go all over the place with any brand.

 

takbok

Well-Known Member

Trade Member

• Mar 26, 2026

• #3

Have you got the primer arm assembly installed on press? This is required to guide the spent primers properly.

LEE PRIMER ARM ASSEMBLY LARGE

Part Large Primer Arm Assembly for the Breech Lock Challenger Press, Classic Cast Press, 4 Hole Turret Press, and Classic Turret Press.

www.henrykrank.com

Also there's a little blanking plate that needs to be in place on the press.

 

Foxyboy43

Well-Known Member

• Mar 26, 2026

• #4

takbok said:

Have you got the primer arm assembly installed on press? This is required to guide the spent primers properly.

LEE PRIMER ARM ASSEMBLY LARGE

Part Large Primer Arm Assembly for the Breech Lock Challenger Press, Classic Cast Press, 4 Hole Turret Press, and Classic Turret Press.

www.henrykrank.com

Also there's a little blanking plate that needs to be in place on the press.

Click to expand...

This and they can stick which leads to spent primers backing up and/or falling on the floor - work the ram and see if the primer arm drops down each time if not a good clean will sort it.

 

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Bavarianbrit

Well-Known Member

• Mar 26, 2026

• #5

I use a lee press only to deprime as the spent primers mostly flip into the vertical opening as shown at 3:25 on this video, I added a tetrapack milk carton cut to get a flap under the press ply board for the wayward primers to fall into, tetrapack has a vertical slot cut 1.5 inches wide for the press handle to deploy it works with around 99% of primers never landing on the floor. BTW my press is mounted onto a hollowed out wooden block 3 inches high that is bolted onto a ply board which acts as the surface I use for my G cramps to hold it down on the bench, this primer storage block gets emptied once a month

 

25 Sharps

Well-Known Member

Supporter

• Mar 27, 2026

• #6

Dan Newcombe said:

Really stupid question but can you put one together wrong? When I’m sizing and de-priming brass the spent primers never go down the little tube for some reason, anyone else had a similar problem?

Cheers

Click to expand...

Stick up a photo and the collective may be able to spot what’s wrong.

 

D

Dan Newcombe

Well-Known Member

• Mar 27, 2026

• #7

I think the issue might be that I don’t have the primer seater thing in there - clearly didn’t read the instructions properly at any point.

 

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wytonpjs

Well-Known Member

Supporter

• Mar 27, 2026

• #8

You have forgotten to put the aluminium end plate on the collection trough. You also need to put the deflector into the press ram as mentioned above

 

3595wilk

Well-Known Member

Supporter

• Mar 27, 2026

• #9

Get one of these off the bay of evil.

Pushes the primer out to the collection area and it just drops straight done the tube.

This press is just for depriming now and ideal with this little bit of plastic ....

 

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Last edited: Mar 27, 2026