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What reloading dies do you use for 7.62 nato?

This is a discussion on What reloading dies do you use for 7.62 nato? within the Ammunition forums, part of the M14 M1A Forum category; I'd love to get 20 reloads out of 308 brass but after inspecting the inside of the cases with paper clips, looking for case seperation ...


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Old November 26th, 2012, 08:04 AM   #61
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I'd love to get 20 reloads out of 308 brass but after inspecting the inside of the cases with paper clips, looking for case seperation about 1/2" from base, I have come to realze that about 8-10 is all I can get, if that much. The 308 is "Hot" and the heat will cut a circle inside the brass over time. This will lead to case seperation and jams and perhaps death if you are trying to protect youself or family. Inspecting brass by running a paper clip that has a small 90 degree bend up and down the inside of each brass may save you life or at least a big buck. I do this for all rifle brass that I know has been reloaded more than once. If you feel any indent, a circle has started and discard brass. Just some advice...

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Old November 26th, 2012, 10:09 AM   #62
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The 308 is "Hot" and the heat will cut a circle inside the brass over time
Interesting, I wont hijack the thread but that's a new one on me.

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Old November 27th, 2012, 04:33 PM   #63
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RCBS "X" Dies

Given all the complexity for safe reloading of .308s/7.62s for our M1As, I finally bought a set of the new RCBS "X" dies. I didn't read all 4 pages of this thread, only page one, so forgive me if someone else has already explained this... so here goes...)

The difference between a regular .308 FL die and the RCBS "X" dies is simple. The "X" dies have a collet or ring that limits brass case growth (stretch) when the case is FL sized. It does nothing to prevent "exit stretch", as in: when you pull your resized case out of your dies, esp. if the neck sizing ball is tight or is getting dry.

However, that can be minimized by using the Lee (is it? Or Lyman? ) after-market carbide sizing ball kit (shaft, locking collar & carbide ball) that will fit RCBS dies, or you can buy Redding dies to begin with (IHMO, the best..., but then, they don't have the "X" die length-limiting feature... <sigh>).

As well, I just now checked, and Dillon also has a .308 Carbide FL sizer die with a carbide insert up inside the die and a carbide neck sizer button as well. V. slick indeed, (no squeaking dies!) but the retail for the sizer die alone is $134 plus shipping. Yikes!

If you do use RCBS's excellent "X" dies, you can minimize "exit stretch" by a light spritz of any of the good aerosol resizing lubes, limited to the inside of the necks of your brass for the most part. That way, the re-size ball will generally have sufficient lube on it to minimize a tight pull-through when you're on the upstroke (case removal) of the resize operation.

Of course, remember: you can still only get about 3 - 5 (max...) reloads out of most .308 brass that has endured firing in the vigorous M1A cartridge cycle. After that, it's anyone's guess. So all that trimming and neck beveling and so on you lovingly did? All lost. Still, you will save about $0.50 per load in the meantime, so it's still worth it...

"Beware the man who only has one gun. But even more so, beware the guy who reloads his own brass. He's far too stingy to let-'er rip on fast semi-auto!" rflmn™ 2012.

PS: I also have one of those "World's Finest Trimmers"...

http://www.littlecrowgunworks.com/wft.html

An excellent investment if you have a lot of, let's say, hard & thick Lake City ammo. Fast & accurate.

Always reload carefully!

_______________________________

But on that last cautionary note, and having read back a few pages, 20 reloads Larry? In an M1A rifle? Wow! I'd be scared sheizze-less! But you're the boss. Have you never experienced any brass failures? Ever?

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Old November 27th, 2012, 07:34 PM   #64
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Ramm,


I have seen a bunch. But, I shoot a bunch!!! Commercial is affected worse. A paper clip running up and down inside and you will feel them if they are getting ready to bust the brass in half. But some shooters discard after 4 or five reloads. I'm cheap!

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Old November 27th, 2012, 08:10 PM   #65
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MesaRifle makes some good points about the RCBS X-Dies. I hadn't thought of replacing the expander ball with a carbide one. I have used Redding's Imperial Dry Neck Lube and the application media though, and it makes a difference both in the effort required on the upstroke and how much the case length stretches. For me, that works better than graphite on a brush but YMMV.

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Old November 27th, 2012, 08:13 PM   #66
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Quote:
Originally Posted by tank1949 View Post
Ramm,


I have seen a bunch. But, I shoot a bunch!!! Commercial is affected worse. A paper clip running up and down inside and you will feel them if they are getting ready to bust the brass in half. But some shooters discard after 4 or five reloads. I'm cheap!
The ring of thinner brass develops as you shoot and resize multiple times...the brass flows forward, lengthening the case (which is why you need to trim the case every other time or so...). The number of reloads you may get from a case before a head separation depends on many factors, such as chamber dimensions, resizing die type and depth, etc. .308 and 7.62mm NATO are loaded to the same pressures, and also similar to the 30-06,about 60,000 to 62,000 PSI. (50,000 to about 52,000 C.U.P).

Certainly, loading "MAX" loads will accelerate the brass flow.

I've gotten about 5-7 reloads in my Garands at which point a neck may split, sometimes a vertical split in the side of the case and very seldom a case head separation.

But all are possible with reloads and none are in any way dangerous, except if you get a case head separation it may leave part of the case in the chamber.


JWB

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Old November 28th, 2012, 03:13 AM   #67
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RCBS F/L dies with single stage rock crusher. Works fine, but im a low volume loader.

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Old November 28th, 2012, 07:56 AM   #68
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Quote:
Originally Posted by tank1949 View Post
Ramm,


I have seen a bunch. But, I shoot a bunch!!! Commercial is affected worse. A paper clip running up and down inside and you will feel them if they are getting ready to bust the brass in half. But some shooters discard after 4 or five reloads. I'm cheap!
I was referring to your comment about the heat of the load causing the case to thin. I've seen a bunch too, but it's not due to heat, it's just the normal process of brass flowing and being reshaped in the sizing process. All brass cases will develop this stretch ring with the right conditions. Reducing the load reduces the forces that stretch the case and the elasticity of the case then allows the brass to expand and contract without flowing.

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Old November 28th, 2012, 09:45 AM   #69
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I have used Hornady, Lee and RCBS 308 dies. I have settled on best combination for me of Lee universal for depriming and RCBS Xdies for reloading. good brass life and ease of use.

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