Load to hot?

[pdh]

Hi all.I know old brass will get brittle and split but after the 2nd loading of new winchester brass,I found the neck of one of them split.
No other signs of high pressure in this load.Do I need to back off on the load some?
Thanks

 

[Jim Watson]

Caliber?
Load?
Age of brass?

Case neck splits are not a usual sign of high pressure. If it happened to me one time with a book load I would assume a flaw in the brass.

 

[pdh]

Caliber is 22-250.The load is 37.5gr of BLC(2)using the pushing the 52gr seirra.
I bought the brass new last summer and this was the second loading.

 

[Clark]

That IS a hot load.
I don't know if it is TOO hot.
It may be you need to aneal your necks.

 

[braindead0]

Definately anneal your necks...put them in a pan of water about 1/3 way up the case..heat the necks with a torch until cherry red and then simply tip each one over when it's hot..make sure the water is cool or cold, don't let it get too warm or it will not fully anneal the brass.

 

[Frohickey]

I've read a different way to anneal the necks of cases.

Its to put them in a pan of cold water and heat the case necks until they are a dull glow in a darkened room and then tip them over into the cold water.

The cold water is supposed to prevent any annealing of the case head which should not be softened up. But heating the case neck to cherry redness soft would make it too soft.

 

[Mal H]

I believe Frohickey is right on the annealing temp. The neck temp should get to around 750 deg F which would be a very dull red (hence the dark room). If they got to a cherry red, they would be well over 1,000 deg. which would yield a softer structure in the brass.

 

[Robert inOregon]

Your 3.5 grains over maximum with that load and the pressure is above 60000 CUP. Back it off and half your problem will be solved.