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FL resize case troubles **Updated**

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Unread 11-21-2008, 06:14 PM
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Join Date: Oct 2007
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Re: FL resize case troubles

1. Do any of the brass fit ever after you fire, but before you resize them. Have you tried to fit an empty back into your gun right after you fired it? Just fire it, eject it, and put back into the chamber.

2. Is the brass "shaved" all the way around after you resize it, or just on two oppisite sides?

Where I am going with this is the chamber may have been reamed out of round right from the start from the factory. I have seen this on two remingtons.

Let us know!!
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Unread 11-21-2008, 06:47 PM
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Join Date: Feb 2004
Location: Pennsyltucky
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Re: FL resize case troubles

i would try to put the brass in the chamber the same way it came out after firing. index the base of the case and insert the brass in the chamber. fire it and rechamber without rotating. now rotate the case 90 deg and see if it will chamber. this will tell you if the chamber is out of round.

if the brass won't rechamber after firing, i would have the headspace checked. if that's OK, i would contact Remington as you might have a weak receiver/ bolt/ lugs which will allow the brass to grow upon firing because it gives when the pressure is on it, then pops back to original position making the case tight in the chamber.

as for the shaving the brass, sounds like you might have a sharp edge in the die.
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Unread 11-21-2008, 07:52 PM
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Join Date: Feb 2005
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Re: FL resize case troubles

I'm betting on the out of round chamber
range it,check the wind, dial in correction, aim and only one shot
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Unread 11-21-2008, 08:23 PM
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Join Date: Nov 2007
Posts: 110
Re: FL resize case troubles

Sounds like a chamber problem to me, a belted magnum collet resizing die from innovative technology may or may not help you. There is one thing I would do and that is take the rifle to a GOOD MASTER GUNSMITH and have the chamber slugged with creosafe so it can be determined if it is out or in SAMMI spec.
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Unread 11-21-2008, 08:46 PM
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Join Date: Jun 2008
Location: Jackson Ms
Posts: 320
Re: FL resize case troubles

I'll try and slip off to the range tomorrow and check the out of round chamber theory. I don't know if the out of round chamber would affect accuracy. The gun is a pretty steady sub MOA shooter (except those Berger. Haven't got them figured out yet; at least not consistently.).

Like I had stated the shaving is around the entire circumfrence and the new brass works fine. It works after the first time I neck size only. After that it is too large in the rear.

We'll see what tomorrow holds.

As an afterthought I did find that the other day one of the cases was hard to remove after it sat in the chamber for 10min. I shot a round. Went to the truck and made a phone call. when I returned and worked the bolt it was a bit stiffer than I expected. would this help the weak reciever theory.

I'd also like to get a krieger #5 or 6 barrel. Do you think they could fix whatever ails me?

Last edited by Limbic; 11-21-2008 at 09:02 PM.
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Unread 11-27-2008, 01:45 AM
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Join Date: Jun 2008
Location: Jackson Ms
Posts: 320
Re: FL resize case troubles

Well I've got some new tools in. Precision Mic shows that the headspace is -.004. I measured some of the brass and the brass that is harder to get in the chamber is .002 larger at the belt and at 3/10 of an inch above it. Maybe weak bolt/lug is allowing the end of the brass to over expand?
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Unread 11-27-2008, 08:41 AM
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Re: FL resize case troubles

Well, I would investigate 2 possible problems.

Case head separations are caused by there being too much of a gap between the case shoulder and the chamber shoulder. It is not defined as headspace since belted magnums headspace on the belt until the case has expanded enough so that you can then headspace on the shoulder. If you have a large gap on new cases then that would cause a lot of stretching at the web where the case body goes to being unsupported

When you fire the load, the firing pin slams the case forward, the case body expands and grips the walls, the pressure forces the case body back to the bolt face and the case thins at the pressure ring/web. A large gap at the shoulder is not uncommon and I have measured as much as .030". That is a problem with undersize brass as much as it is with oversize chamber.

When you Full Length Resize and push the shoulder back more than absolutely necessary then the thinning will happen every time you fire that case. As the brass becomes thinner there it will expand more readily and springback less. It would be good to know how much that clearance measures between the NEW case shoulder and the chamber shoulder.

The other thing is that in the few Remingtons I have reloaded for (7) the chambers have all been large enough so that it was a chore to size the fired case body in the die (normally Redding Body Dies) and there was a lot of scraping going on. This is not a problem in itself. Remingtons also tend to have a short shoulder and a long throat on an average IME but all are good shooters.

IMO, if you are having case head separation problems then you have a sizing problem.
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