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Author Topic: Making 243 brass out of military 308.  (Read 2258 times)

Offline hunter399

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Making 243 brass out of military 308.
« on: April 25, 2023, 11:47:43 AM »
Anybody try it.
Gave it a go yesterday.
With some success and some not success. :chuckle:
308 on the left.
Got about 10 rounds to try out.

Offline huntnphool

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Re: Making 243 brass out of military 308.
« Reply #1 on: April 25, 2023, 11:53:57 AM »
Anybody try it.
Gave it a go yesterday.
With some success and some not success. :chuckle:
308 on the left.
Got about 10 rounds to try out.

 Had thought about trying it, but with a .308 also in the safe, didn’t want to ever be in the position of brain farting the use.
The things that come to those who wait, may be the things left by those who got there first!

Offline jasnt

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Re: Making 243 brass out of military 308.
« Reply #2 on: April 25, 2023, 12:06:31 PM »
I’ve done it.  Needed neck turned.  The necks end up thick!
https://www.howlforwildlife.org/take_action  It takes 10 seconds and it’s free. To easy to make an excuse not to make your voice heard!!!!!!

The commission shall attempt to maximize the public recreational game fishing and hunting opportunities of all citizens, including juvenile, disabled, and senior citizens.
https://apps.leg.wa.gov/RCW/default.aspx?cite=77.04.012

Offline hunter399

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Re: Making 243 brass out of military 308.
« Reply #3 on: April 25, 2023, 12:25:11 PM »
I’ve done it.  Needed neck turned.  The necks end up thick!
I noticed that only one needed trimmed.
I keep my 308 trimmed pretty good.
After making them 243 ,they are just a hair short,but I'm sure they will grow after a fire or two.
I made 10 rounds for accuracy and MV test.

Offline hunter399

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Re: Making 243 brass out of military 308.
« Reply #4 on: April 25, 2023, 12:28:03 PM »
Anybody try it.
Gave it a go yesterday.
With some success and some not success. :chuckle:
308 on the left.
Got about 10 rounds to try out.

 Had thought about trying it, but with a .308 also in the safe, didn’t want to ever be in the position of brain farting the use.
Was out shooting both this weekend.
Alot of double check,check,and double check.

Offline CP

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Re: Making 243 brass out of military 308.
« Reply #5 on: April 25, 2023, 12:39:56 PM »
I’ve done it.  Needed neck turned.  The necks end up thick!
:yeah:

I’ve turned .308 into 6.5 Creedmoor and I had that same problem.   

Offline HighlandLofts

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Re: Making 243 brass out of military 308.
« Reply #6 on: April 25, 2023, 06:10:04 PM »
As cheap as brass is I'll stick to proper head stamps.
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Offline jasnt

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Re: Making 243 brass out of military 308.
« Reply #7 on: April 25, 2023, 07:20:46 PM »
If you really want some tough 243 brass, order some lapua small rifle primer brass.  This stuff takes a beating and just keeps bouncing back
https://www.howlforwildlife.org/take_action  It takes 10 seconds and it’s free. To easy to make an excuse not to make your voice heard!!!!!!

The commission shall attempt to maximize the public recreational game fishing and hunting opportunities of all citizens, including juvenile, disabled, and senior citizens.
https://apps.leg.wa.gov/RCW/default.aspx?cite=77.04.012

Offline jrebel

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Re: Making 243 brass out of military 308.
« Reply #8 on: April 25, 2023, 08:02:22 PM »
With .243 so readily available and cheap…..why? 

Offline fly-by

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Re: Making 243 brass out of military 308.
« Reply #9 on: April 25, 2023, 09:57:46 PM »
Tried it with .260 and after buying the neck reamer it would have been cheaper just to buy .260 brass.  Shooter's Pro Shop has occasional deals on .243 brass.

Offline hunter399

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Re: Making 243 brass out of military 308.
« Reply #10 on: April 26, 2023, 12:15:48 AM »
I haven't even looked at prices of brass .
Last time I checked nothing is " cheap" anymore.
I'm running it in an ar10 ,I do have some brass that I use in my bolt gun. But II don't like to mix them .Bolt guns in my experience seem to have tighter chambers than AR style rifles. Chewed up brass from the extraction and all that.
And I always find 556 ,308 military brass just left at shooting areas,so it's like FREE. Which is really cheap.
Anyway I'll give it a try and see what I can get out of it.
I'm not gonna waste time if it shoots like junk.
That's why I only loaded ten to try.
I'll try to update the thread later this week after I try them out.

Offline hunter399

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Re: Making 243 brass out of military 308.
« Reply #11 on: April 26, 2023, 12:18:31 AM »
If you really want some tough 243 brass, order some lapua small rifle primer brass.  This stuff takes a beating and just keeps bouncing back
Could I run magnum small rifle primers
Got some of those laying around.

Offline jasnt

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Re: Making 243 brass out of military 308.
« Reply #12 on: April 26, 2023, 04:10:35 AM »
If you really want some tough 243 brass, order some lapua small rifle primer brass.  This stuff takes a beating and just keeps bouncing back
Could I run magnum small rifle primers
Got some of those laying around.
yes you can.
https://www.howlforwildlife.org/take_action  It takes 10 seconds and it’s free. To easy to make an excuse not to make your voice heard!!!!!!

The commission shall attempt to maximize the public recreational game fishing and hunting opportunities of all citizens, including juvenile, disabled, and senior citizens.
https://apps.leg.wa.gov/RCW/default.aspx?cite=77.04.012

Offline yorketransport

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Re: Making 243 brass out of military 308.
« Reply #13 on: April 26, 2023, 10:40:33 PM »
I've done stuff like that just for fun. I made 50 300 Savage cases from a bunch of military 308 brass just because I was bored one day. It worked pretty well once I got a good system down.

Offline Macs B

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Re: Making 243 brass out of military 308.
« Reply #14 on: April 27, 2023, 07:46:50 AM »
Thats not a good choice for donor brass.  Military 7.62 is used in so many different weapons, you could be getting once shot brass from a precision marksman rifle or mini gun ammo from a helicopter.  Chamber tolerances and heating vary wildly. 
I usually delete my posts after two days.

I've never claimed to be a house painter or a mechanic...it always amazes me how many people want to claim to be a lawyer.

 


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