338 Sherman Brass

[CjC73]

What has been the experience on necking up 270 up to 35? Many split necks?

I have someone who can do this quickly and he'll go 270-284-308-320-338-35 then anneal them.

 

[elkaholic]

What has been the experience on necking up 270 up to 35? Many split necks?

I have someone who can do this quickly and he'll go 270-284-308-320-338-35 then anneal them.

I havent split them when I did it

 

[CjC73]

What bushing size would i need for the whidden dies?

 

[elkaholic]

What bushing size would i need for the whidden dies?

about .360"

 

[benchracer]

When necking up Norma 280 brass, I went from 280 to 30 to 33 (formed by jamming bullet in lands, rather than using false shoulder). With RWS 270 brass, I was cracking necks on the 30 to 33 step. Because of that, I annealed the remaining RWS cases prior to necking up. I had no further problems while expanding necks.

Keep in mind that the brass will work harden a little more each time the neck is sized, increasing the risk of cracking the necks with each step in expansion and setting the false shoulder. Softer brass (such as Norma) may be more tolerant of being worked. Harder brass (such as RWS) is less tolerant, IME.

 

[nksmfamjp]

Sounds like a good excuse to buy an Annealeez!

 

[benchracer]

An AMP is on my wish list, but probably won't happen any time soon.

 

[nksmfamjp]

Annealeez might be higher on your list due to price....

i don't find the flame an issue personally.

 

[CjC73]

What is a good OAL for the 338 Sherman?

Does it feed better with stagger or center better from a BDL set up?

 

[elkaholic]

3.6 will cover most anything.
Feeding is no problem im something later ke a std 700 magazine

 

[elkaholic]

3.6 will cover most anything.
Feeding is no problem im something later ke a std 700 magazine

something like