Thick Wall brass to form 5.6x57 RWS

[WildCatJesse]

Looking for suggestion on thick wall brass to use for forming 5.6x57 RWS.

Cartridge Conversions for Hand Loaders states to use 270, anneal and run threw sizing die then cut to size.

I have tried 30-06, 280 Rem, 270, 25-06, 8x57, 7x57, 257 Roberts, 6mm Rem.

I only got one case to somewhat hold a bullet, mainly at the joint of the neck and shoulder allowing the bullet to wobble around.

I am using Hornady dies if that makes a difference.

Any and all help would be appreciated.

 

[Dusty Stevens]

You need to anneal after forming to relieve the stress from cold forming then anneal again after forming

 

[WildCatJesse]

I’ll give that a try and see if it helps. I cold formed then annealed. But I’ll double up.

Edit, still the same result I am close but not close enough I feel of had some thicker walled brass it my help. I had tried annealing before and after sizing before but decided to do it as one continuous process and still the same result.

 

[butchlambert]

How many different size bushings do you use to neck them down?

 

[WildCatJesse]

I don’t I am just using a hornady FL sizing die. The 5.6x57 has a very thick neck, which I think I am having such a problem.

 

[butchlambert]

The 2 on the left were made from 458 Lott brass down to 22 and 17 cal.

I use my case sizing dies shown below.

 

[WildCatJesse]

May I ask where you got that? That would be useful as all get out!

 

[butchlambert]

I use to sell them.

 

[WildCatJesse]

Any idea where someone could get something of similar concept?

 

[butchlambert]

You might go on some of the various forums and ask. I sold about 200 sets, but they moved too slow to continue selling them.

 

[WildCatJesse]

Well then let’s scrap that part of the plan, I think I may have it figured out.

 

[KMart]

I don’t I am just using a hornady FL sizing die. The 5.6x57 has a very thick neck, which I think I am having such a problem.

Do you have ANY F/L or Neck bushing dies based on the 308 Case? If you do, measure your 5.6X57 neck after it comes out of your Hornady F/L die.
Order a bushing about .003 smaller than that measurement. Use your bushing die to size it the rest of the way down with a proper bushing. Only size about 1/2 to 2/3 of the length of the case neck.
A Creedmoor or a X47 bushing die should also work.

 

[KMart]

I don’t I am just using a hornady FL sizing die. The 5.6x57 has a very thick neck, which I think I am having such a problem.

Another thought is to take your expander plug off and see if that leaves your case necks tight enough to hold the bullet.
Your expander plug may be too big for what you are trying to do.

 

[357Mag]

"WildCatJesse" -

Howdy !

If there's such a thing as factory .35 Whelen brass ( not wildcatted to obtain .358" cal ), you might give them a try ?

When I was forming a new 6.5mm wildcat w/ 1.920" case oal, .470" base diam, and .454" shoulder diam; I wanted to arrive @ .012" neck wall thickness. I initially thought simply starting out w/ .260 Rem brass would work.
Unfortunately.....the case forming process did not give any thicker necks than .0095, despite the inclusion of a modest shoulder shove made to the .260 brass.

Same deficiency made itself known, when I tried wildcatting from 7-08 brass. I reasoned I could try some .308 next, but was not able to locate any; as I was working the wildcat project during the height of the brass shortage.

It then occured to me to try .358Win, which was available. And, it dawned on me that the several calibre neck-down steps I would be performing might just result in thicker neck walls. That proved to be true, and I was able to neck-turn all of the new 6.5mm wildcat cases to .012" final neck wall thickness.

IF you were able to make use of brass w/ .466" base diam, I would suggest you take a look @ 7X64 Brenneke.
It's about .016" longer case oal than the -06. I use it to form my own " DEEP 6 " wildcat.
DEEP 6 chamber is cut by running a 6mm Remington reamer in " short", for a nominal .466" base diam.

Case capacity is 51.2gr H2O . Compare to .243Win @ 54gr.... 6mm Remington @ 55gr H2O.

I mention DEEP 6 because it emerges from the 6.5 X 55 Swedish FL die ( used as the " case forming " die )
with a nominal .22' cal neck ID; and very thick neck walls. After case cut-off for length, I inside neck ream and outside neck turn to reach 6mm final calibre. With that die and 7 X 64 as parent brass, I could form wildcats of
.224" , .244", .257"l and .263" cal. I simply would inside neck ream/outside neck turn to the desired final calibre.

My point:
IF the parent brass has a sufficiently large starting calbre, and your wildcat brass requires a noteable shoulder shove
be made on the parent brass....... then you might just be able form the thcker necks you seek .

I'm not convinced starting out w/ " .30-06 Tubular " would be of any help, as case wall thickness @ the mouth would likely not be much more than .012" to begin with ?

I DK whether that helps any ??


With regards,
357Mag

 

[WildCatJesse]

I always take the expander and deprimer out when reforming brass. Anyways I finally got it to work, using both 30-06 and 270 brass. My process is as follows
Anneal
Lube and resize in 5.6x57RWS FL die without expander
Use a 6mm Rem FL sizer to size the neck.
Cut off excess case length with a dremel
Square up neck
Run it threw 5.6x57RWS FL die with expander.
In the picture the right one I accidentally ran it to far in the 6mm Rem die and reformed the shoulder the second one I was more careful. It’s gonna be a bastard to form brass and reload but hopefully it shoots well as I have invested in the reamer to build myself a rifle.

 

[KMart]

Another option is to check with Huntington Die Specialties. They have it listed in their RWS brass section. It may or may not be in stock.

 

[WildCatJesse]

Another option is to check with Huntington Die Specialties. They have it listed in their RWS brass section. It may or may not be in stock.

I seen they have it but 45 bucks for 20 pieces is a lot. Never know may call and see if they have it

 

[KMart]

Wildcatting IS NOT cheap. I have built 2 in the last 10 months. If you are doing it to save money on dies or brass, you are going to be disappointed.

 

[Dusty Stevens]

I seen they have it but 45 bucks for 20 pieces is a lot. Never know may call and see if they have it

Check on buying a 25pk of 33 nosler

 

[Ggmac]

I seen they have it but 45 bucks for 20 pieces is a lot. Never know may call and see if they have it

And what's your time AND possible ka boom screw up worth