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Bullet run out how much matters?

Thank you Uncle Ed ! That was the Brand of Dies I was looking for, with, the HIGH, tapered, expander ball that, HELD the Neck, near the top of the Die and did NOT mis-align in the neck,.. like RCBS does ! I couldn't remember the Brand (gettin' Old, I guess)
I'm buying,.. FORSTER dies and expander/spindles, from now on ! Thanks AGAIN,..you da' man !
 
Saw reviews saying, .002 or less runout, from many reloaders,.. MOST seem to love, the Forster dies !
What do I use to decap/ deprime, my .243 win Cases using my existing RCBS FL, sizer die ? a .224 expander ball, to hold the decap pin, in place ?
Thanks for the tip, Dusty,.. I will try it. Tried sizing one without, the Exp ball in my RCBS sizer, "neck dia is .265 walls .028 on my Rem Brass so I'm at .006 neck tension approx. does rcbs hone these dies out, too ? I'd like, .002-.003 tension.
Neck "runout" is less than, .002 now,..NO Bullet, yet.
 
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One thing to think about- if youre not turning your necks there is no way to get rid of runout if your necks are not concentric. If you are not using top shelf brass with turned necks dont waste your money buying a concentricity checker or a drawer full of dies.
 
We were messing around in my shop tonight and thought we would run a concentricity test. Took two pieces of the very same brass that had been neck turned and fired the same amount of times and ran one in the Redding f/l sizer and the other in the lee collet die then ran them on my Sinclair concentricity gauge. Both came out right at .001. The only differents we could see is the Lee is only $30
 
Idaho-Lefty said:
Saw reviews saying, .002 or less runout, from many reloaders,.. MOST seem to love, the Forster dies !
What do I use to decap/ deprime, my .243 win Cases using my existing RCBS FL, sizer die ? a .224 expander ball, to hold the decap pin, in place ?
Thanks for the tip, Dusty,.. I will try it. Tried sizing one without, the Exp ball in my RCBS sizer, "neck dia is .265 walls .028 on my Rem Brass so I'm at .006 neck tension approx. does rcbs hone these dies out, too ? I'd like, .002-.003 tension.
Neck "runout" is less than, .002 now,..NO Bullet, yet.
Click to expand...
I removed the expander ball from a Forster Die because I was fed up with stretching the brass neck back and forth followed by constant trimming, only to discover my Die would reduce the necks almost.010 - E Gads!
I could have sent the Die to Forster for honing but opted for a different path.
 
SPJ said:
I removed the expander ball from a Forster Die because I was fed up with stretching the brass neck back and forth followed by constant trimming, only to discover my Die would reduce the necks almost.010 - E Gads!
I could have sent the Die to Forster for honing but opted for a different path.
Click to expand...
Expander ball was not there to do it's job,what did you expect ? Something has to give it uniform dimensions...expander ball or a mandrel afterwords .
 
SPJ said:
I removed the expander ball from a Forster Die because I was fed up with stretching the brass neck back and forth followed by constant trimming, only to discover my Die would reduce the necks almost.010 - E Gads!
Click to expand...
Forster makes those dies to size a big range of neck wall dimensions.
 
daleboy said:
Expander ball was not there to do it's job,what did you expect ? Something has to give it uniform dimensions...expander ball or a mandrel afterwords .
Click to expand...
I was expecting to extend the life of my brass and reduce trimming, I accomplished that.
 
I have found that runout is consistent in each casefeom one firing to the next. If a particular case has .001 runout, it stays the same from load to load. Same of it is .003.

With my 6mm ammo, I have not seen runout over .003. I don’t think this is enough to matter at short range.

With my 257stw ammo, I see higher runout. I had not been neck turning this ammo but will start to see if that reduces the runout. I fullexpect that it will since that ammo is necked down from 7mm. I am not sure whether the increased runout is showing on the target. The gun shoots under 1/2 moa and I have not took time and worked up a load.
 
SPJ said:
I removed the expander ball from a Forster Die because I was fed up with stretching the brass neck back and forth followed by constant trimming, only to discover my Die would reduce the necks almost.010 - E Gads!
I could have sent the Die to Forster for honing but opted for a different path.
Click to expand...
I have gone to using only FL bushing dies. With the correct bushing no expanding is required and you will be working the brass much less. This has proven to produce the least maintenance and longest life for me.
 
One Shot One Thrill said:
I have gone to using only FL bushing dies. With the correct bushing no expanding is required and you will be working the brass much less. This has proven to produce the least maintenance and longest life for me.
Click to expand...
That was the path I chose as well.
 
SPJ said:
That was the path I chose as well.
Click to expand...
I too use Redding bushing dies and competition seating dies. A tip to lower run out, this may surprise you but after you seat the bullet, lower the ram so you can get your finger on the loaded round and rotate it one third and raise the ram, then do it again. It doesn't take long and then check your run out. Make a comparison with several rounds. I do this for my match loadings.
 
I've heard a lot of good things about Redding products
 
SPJ said:
I've heard a lot of good things about Redding products
Click to expand...
For years, Sierra used Redding full length bushing dies resizing cases testing bullets for accuracy. Redding regular full length dies were used for others. RCBS Rock Crusher presses. Never prepped cases. Used the same load across all components lots.
 
Bart B. said:
For years, Sierra used Redding full length bushing dies resizing cases testing bullets for accuracy. Redding regular full length dies were used for others. RCBS Rock Crusher presses. Never prepped cases. Used the same load across all components lots.
Click to expand...

But what is acceptable to sierra?
 
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