Jump to content

Lee Collet Neck Sizer


Recommended Posts

Has anyone any experience of these?

I seen them recommended on a US forum because they hardly work your brass. I can testify to this, when you press the case in it feels like its doing nothing.

 

My problem is that it's doing too much. It says in the instructions that the Mandrel is set for average tightness and if you want tighter, order a new mandrel. My problem is that there's nothing average anout the tightness at all, I can slide a bullet head in by hand :unsure:

Link to comment
Share on other sites

You can polish the mandrel ion a drill press- some brands of brass are more springy than others. Or you can send off to Lee for a different one- I've heard good things about their customer service.

 

I'm not overly impressed though, I just expected it to be right first time...

Link to comment
Share on other sites

Going to assume that you've just got it new. Try taking it apart to check for swarf and that all parts move freely. Then try it again taking up any slight free movement backlash in the press before winding it in the one more turn as specified. If it's still a no no, try the 1/4 extra turn as specified and if still no good then back it goes. Must say, that I've never had any trouble with 243,223 and Hornet. The only hiccup was my shooting oppo loading his hornet with a 224 mandrel and a 223 bullet!

Link to comment
Share on other sites

Going to assume that you've just got it new. Try taking it apart to check for swarf and that all parts move freely. Then try it again taking up any slight free movement backlash in the press before winding it in the one more turn as specified. If it's still a no no, try the 1/4 extra turn as specified and if still no good then back it goes. Must say, that I've never had any trouble with 243,223 and Hornet. The only hiccup was my shooting oppo loading his hornet with a 224 mandrel and a 223 bullet!

 

So the further I screw it in the less it will re-size the neck?

:hmm:

Link to comment
Share on other sites

So the further I screw it in the less it will re-size the neck?

:hmm:

No, the opposite, but only up to point.

TBH, from the word go I was a bit confused. You say it's doing too much - I read that as too tight - and then you say you can push the bullet in by hand - that's obviously too loose. When the primer is forced out and the lever moves down a little as a consequence, are you applying any force to the lever after that? It does require a firm application - not gorilla like though - and it's good if you slack off and rotate the cylinder 180 degrees and repeat.

 

Have a quiet think for a minute and get back if you're still stuck.

 

Edit: This has just occured to me and is going to sound ****** stupid, but you haven't by any chance (I know, stupid) got the collet die mixed up with the dead length seating die?

Edited by wymberley
Link to comment
Share on other sites

No, the opposite, but only up to point.

TBH, from the word go I was a bit confused. You say it's doing too much - I read that as too tight - and then you say you can push the bullet in by hand - that's obviously too loose. When the primer is forced out and the lever moves down a little as a consequence, are you applying any force to the lever after that? It does require a firm application - not gorilla like though - and it's good if you slack off and rotate the cylinder 180 degrees and repeat.

 

Have a quiet think for a minute and get back if you're still stuck.

 

Edit: This has just occured to me and is going to sound ****** stupid, but you haven't by any chance (I know, stupid) got the collet die mixed up with the dead length seating die?

 

 

Ok I can see how I have confused you.

Firstly, no I only have a Lee Collet die, my other dies are RCBS.

 

Secondly I think you have answered my question.

 

What is happening is that the Necks are Far too LOOSE. I was working under the impression that the Collet die had an expander ball like my RCBS FL die, now I'm thinking it doesn't?

 

When I use the die it pops out the primer and it feels like the die is doing nothing, I'm starting to think that maybe it IS doing nothing because I have it improperly adjusted?

Link to comment
Share on other sites

Ok I can see how I have confused you.

Firstly, no I only have a Lee Collet die, my other dies are RCBS.

 

Secondly I think you have answered my question.

 

What is happening is that the Necks are Far too LOOSE. I was working under the impression that the Collet die had an expander ball like my RCBS FL die, now I'm thinking it doesn't?

 

When I use the die it pops out the primer and it feels like the die is doing nothing, I'm starting to think that maybe it IS doing nothing because I have it improperly adjusted?

Nope, no ball. You have PM.

Cheers

Link to comment
Share on other sites

I use the lee collet die to reload 303 and it does so perfectly.

 

To make the case grip tighter get the ram at the top of the stroke so the die is touching the shell holder then loosen the locking nut and wind the die in a further 1.5 turns.When you resize you need to pull on the lever quite hard because you're shrinking it a fair bit and will notice a difference when seating the bullet too.

Edited by Imperfection
Link to comment
Share on other sites

Funny - I've found this die to be one of the best to load Hornet ammo. I guess the people who can/are prepared to pay a fortune for their reloading kit would say it's rubbish?

 

I've used all sorts. To be quite honest I notice very little difference between any of them!

Link to comment
Share on other sites

There is no doubt that collet dies can and do produce good quality ammo but all to often a user tells us that his necks have not been sized enough to grip the bullet.

This is where the concept of the die falls down, trying to form the neck against a set diametre mandrel is the fault.

No matter how hard you squash the neck against the mandrel you will never size the case to the size of the mandrel due to spring back of the brass.

This spring back of the brass is why these dies are inconsistant, different batches of brass, differant hardness of cases etc all lead to the die failing to do its job as it should.

Polishing down the mandrel is the usual cure for this problem but should not need to be done to a new die, the die should be 100% workable from the outset, not needing permanent modification to work.

 

Ian.

Link to comment
Share on other sites

There is no doubt that collet dies can and do produce good quality ammo but all to often a user tells us that his necks have not been sized enough to grip the bullet.

This is where the concept of the die falls down, trying to form the neck against a set diametre mandrel is the fault.

No matter how hard you squash the neck against the mandrel you will never size the case to the size of the mandrel due to spring back of the brass.

This spring back of the brass is why these dies are inconsistant, different batches of brass, differant hardness of cases etc all lead to the die failing to do its job as it should.

Polishing down the mandrel is the usual cure for this problem but should not need to be done to a new die, the die should be 100% workable from the outset, not needing permanent modification to work.

 

Ian.

Do you think someone who had never seen/used one before and having no instructions might have a problem the first time he tried it?

Link to comment
Share on other sites

Do you think someone who had never seen/used one before and having no instructions might have a problem the first time he tried it?

 

Yes i do, it could go both ways, the new user could have brass that springs back very little and a mandrel on the small side of the acceptable manufacturing tolerences, resulting in good quality ammo and be none the wiser.

Then there is the new user that has brass made of a slightly harder alloy which is a bit more springy and a mandrel at the other end of the tolerences whos necks do not get sized enough and the bullet drops into the case, he is going to say *** and procalim the die as $hite.

 

Ian

Link to comment
Share on other sites

Hi Lads,

 

I actually didn’t know about the downsides to the collet, thanks for pointing them out!

I’m pretty sure after talking to wymberly that my issue is operator error, I didn’t get a chance to check last night because Dad has my shell holder, I’m away for the weekend, but I’ll let you all know first thing on Monday!!

Link to comment
Share on other sites

Try this

http://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/4806613/1

There's alsp a link to a utube on the collet.

The only time I had a problem was with some thin necked cases ... it worked fine with the Lapuas.

As to spring back .. I neck sized a new batch but only loaded half of them. About a week later I started to load the rest but noticed the bullet was an easy-fit. A check with a mandrel showed about 1thou 'springback in a week: so maybe not quite an instant effect??

Link to comment
Share on other sites

I have a set of inherited Lee dies and an Redding micrometer bullet seater. So far, all dies have worked well for me. The neck sizer de-capper just needs to be adjusted as per the enclosed instructions/ see Lee website - vids available. The explanation above I would confirm is the one I use but sometimes its easier to watch a vid.

I know Lee dies are towards the cheaper end but since I was given them I have used them since with good and consistent results.

By simple inspection, I'd buy a new set of Redding if I had to replace them.

Cheers

Link to comment
Share on other sites

  • 1 month later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...