shoulder bumping ?

[Webster]

I run a few pieces of 223 brass through my sizing die and it actually came out one or two thousands longer. The die is screwed all the way down to the shell holder. What am I doing wrong and how can I fix it to bump back two thousands ?

Why is it a problem? If you can chamber it and fire it I wouldn't worry about it.

 

[6MMsteve]

I can feel Guffey's presence watchout

 

[AJC]

I can feel Guffey's presence watchout

Are your feeler guages tingling

 

[6MMsteve]

Are your feeler guages tingling

lol my shoulders are bumping

 

[joshb]

Are your feeler guages tingling

My datums are glowing red! He’s close!

 

[Dusty Stevens]

We cant get lucky enough to be graced with guff’s presence. I guess he finally gave up on us and is out teaching the common reloaders on other sites that will be more responsive to him

 

[rwj]

We cant get lucky enough to be graced with guff’s presence. I guess he finally gave up on us and is out teaching the common reloaders on other sites that will be more responsive to him

I must admit that it wasn’t easy engaging in threads with him as he often communicated using riddles that were at many times confusing... but they frequently elicited very lively responses!

 

[Bill K]

I run a few pieces of 223 brass through my sizing die and it actually came out one or two thousands longer. The die is screwed all the way down to the shell holder. What am I doing wrong and how can I fix it to bump back two thousands ?

Sounds too me as if your die set up is okay, In fact most back it off, from hitting the shell holder maybe 2 thousands, so you don't bump the shoulder back from fitting your chamber too much or cause a headspace issue.
I would think that it your case is growing longer, from what you say, you need to trim the case down to the max or minimum length. Try making sure the OAL falls between those specs and see if it does not enter and fit the chamber just fine.

 

[Webster]

We cant get lucky enough to be graced with guff’s presence. I guess he finally gave up on us and is out teaching the common reloaders on other sites that will be more responsive to him

I'll bet he is still watching us. Need to see if he is still a member.

 

[Tom Jones]

You need to trim your brass after sizing. This is normal. Normally you can get a couple firings before the case overall length exceeds max. This condition happens with all presses. Firing a round with a case exceeding max length can cause serious pressure problems. Trim after sizing.

 

[Intheshop]

Sorry for the "off topic" but;

Ole Goo-fey never ceased to bring a smile or laugh from me. Heck,grinning right now thinking of some of the responses he would get. That was some funny sheet.

 

[MGYSGT]

I find the brass grows after a few firings. As long as it chambers easily I only worry about O.A.L. It can take a few firings for the brass to set/grow into your chamber. Then it's time to worry about shoulder bump.

 

[divingin]

Guffey is currently on the high road, still teaching...

And on Calguns.net, replying entirely off-topic to various posts.


To the original problem, I'm assuming that OP is actually having shoulder set back problems, rather than OAL problems.

I suspect that Dave Tooley nailed the problem: Press flex (in one flavor or another.)

OP: Take a few pieces of brass, and run them through your press until all stations are populated. Stop when you get the ram raised fully, and either look (if you can get your head in there), or otherwise measure (feeler gauge - not to satisfy Guffey's mind) the gap between the bottom of your sizing die and the shell plate. I suspect you're going to find that there is a significant gap there, caused by either the press frame stretching out of shape, or the shell plate support flexing. The gap represents how much further you can screw the die in, and how much further you can set your shoulder back.

As an aside, make sure you're lubing your cases sufficiently - less drag means less press flex.

Good luck!

 

[msinc]

I'll bet he is still watching us. Need to see if he is still a member.

We have a member that has been banned from this and every other forum on the web, among us now....in fact he's been banned from this forum many times. His attitude usually shines thru eventually and they can him again...this is about as long as he's lasted lately. Must be getting some counseling.....If I had to guess, he's putting those of us that know him well on ignore.