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Reloading Techniques For Reloading


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Did I fix my reloading problem, do others do this?

 
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Old 02-11-2011, 12:14 AM
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Did I fix my reloading problem, do others do this?

So I made a roller to measure my neck runout on the brass...it was kinda bad.
Fired brass was around .002
After neck sizing and bullet seating it mostly went to .005-.010

What to do, I pondered.....order better dies than the standard rcbs?

I took one fired brass that had .0025 runout and hit it with the FL die and sure as a politicians promise it went south.....006 runout. I thought what do I have to lose so I ran it up a few more times while changing it's relation to the die. Darn thing got better and better (easier to press too) .003, .002 etc.. until after 5 or so runs at it I was at .0005

Am I smoking crack here or do others do this?

My only question is safety with working that neck brass a few times, after the first one it hardly feels like it is being worked much. Sure comes out nice though. I can't wait to see the final runout with the bullet.
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Old 02-11-2011, 12:41 AM
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Re: Did I fix my reloading problem, do others do this?

I have done what you mention, but with a bushing style die. I am assuming you don't have an expander ball, if the stroke becomes easier?

That would be the downside IMO of working it more than once (unless you're stopping short of the ball being pulled through the neck). Because the neck would theoretically be worked back and forth every stroke if it were a full stroke.

Anyway, glad to hear you got the runout down.
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Old 02-11-2011, 03:41 AM
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Re: Did I fix my reloading problem, do others do this?

You might want to anneal your case necks. They can act strange like that if they are in need of a good flaming.
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Old 02-11-2011, 05:24 AM
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Re: Did I fix my reloading problem, do others do this?

Just reading the thread again. I noticed that you mention .0025 runout on once fired, unsized cases? Am I reading this correct?

If that's the case (no pun intended) then the chamber isn't very concentric IMO. I find very little runout on necks of fired cases.

The old saying is "Out 2 on fireing = Out 4 on sizing = Out 8 on seating".
In other words, each step usually doubles runout. I have found this to be more or less true on more than one rifle/die.

A good chamber should have < .001 total run out on fired cases, measured on the necks (and assuming the necks are concentric and not dented/deformed(uniform thickness, not ejected hard)).

But anyway, after reading your post again; I am assuming you already knew some of this.
Quote:
sure as a politicians promise it went south.....006 runout.
Let me know on the expander ball?
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Last edited by SBruce; 02-11-2011 at 05:32 AM.
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Old 02-11-2011, 09:46 AM
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Re: Did I fix my reloading problem, do others do this?

Airgunner,

I do the same thing using about 6 to 8 strokes when sizing and then do the same thing seating the bullet. Using this method I get almost all my loads down to .001 to .0005. If I size and seat with a singe stroke each my runout will instantly go up to .005 or worse using the exact same dies and setup.
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Old 02-11-2011, 12:55 PM
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Re: Did I fix my reloading problem, do others do this?

Yeah, it is a regular FL die with expander ball. It is Nosler custom 300rum brass that has been necked down to 7rum, fireformed, then sized and reloaded/fired again.

I have about 30 or so of these 2x fired empty cases.
Have 20 loaded 1x fired rounds left in my box to compair them to.

I just measured a dozen of them and high was .0035 low .0010.
I guess I could toss the some of the higher ones but, in all fairness I have not neck turned any of these noslers.

I have some neck turned/fired remington brass and it has about the same rounout before sizing too. Is this normal for a factory Sendero?

Not looking for bench rest here, just nice straight loaded ammo.
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Old 02-11-2011, 05:35 PM
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Re: Did I fix my reloading problem, do others do this?

That does seem high to me, even for a factory chamber. But maybe I've just been lucky and gotten some of the better ones?
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