Hunting Washington Forum

Equipment & Gear => Guns and Ammo => Topic started by: hunter399 on April 25, 2023, 11:47:43 AM

Title: Making 243 brass out of military 308.
Post by: hunter399 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.
Title: Re: Making 243 brass out of military 308.
Post by: huntnphool on April 25, 2023, 11:53:57 AM: Quote from: hunter399 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.

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.
Title: Re: Making 243 brass out of military 308.
Post by: jasnt on April 25, 2023, 12:06:31 PM: I’ve done it. Needed neck turned. The necks end up thick!
Title: Re: Making 243 brass out of military 308.
Post by: hunter399 on April 25, 2023, 12:25:11 PM: Quote from: jasnt on April 25, 2023, 12:06:31 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.
Title: Re: Making 243 brass out of military 308.
Post by: hunter399 on April 25, 2023, 12:28:03 PM: Quote from: huntnphool on April 25, 2023, 11:53:57 AM
Quote from: hunter399 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.

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.
Title: Re: Making 243 brass out of military 308.
Post by: CP on April 25, 2023, 12:39:56 PM: Quote from: jasnt on April 25, 2023, 12:06:31 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.
Title: Re: Making 243 brass out of military 308.
Post by: HighlandLofts on April 25, 2023, 06:10:04 PM: As cheap as brass is I'll stick to proper head stamps.
Title: Re: Making 243 brass out of military 308.
Post by: jasnt 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
Title: Re: Making 243 brass out of military 308.
Post by: jrebel on April 25, 2023, 08:02:22 PM: With .243 so readily available and cheap…..why?
Title: Re: Making 243 brass out of military 308.
Post by: fly-by 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.
Title: Re: Making 243 brass out of military 308.
Post by: hunter399 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.
Title: Re: Making 243 brass out of military 308.
Post by: hunter399 on April 26, 2023, 12:18:31 AM: Quote from: jasnt 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
Could I run magnum small rifle primers
Got some of those laying around.
Title: Re: Making 243 brass out of military 308.
Post by: jasnt on April 26, 2023, 04:10:35 AM: Quote from: hunter399 on April 26, 2023, 12:18:31 AM
Quote from: jasnt 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
Could I run magnum small rifle primers
Got some of those laying around.
yes you can.
Title: Re: Making 243 brass out of military 308.
Post by: yorketransport 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.
Title: Re: Making 243 brass out of military 308.
Post by: Macs B 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.