Is All Brass The Same???

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31 May 2005, 20:04

hglass

Is All Brass The Same???

I have been reloading for more years than I care to remember. But I always wanted to know if brass manufacturers made brass in different strengths. For Example the 308 has a max pressure of aprox 60k and the 7x57 has a max pressure of 51k and a 30-06 aprox 58k. The W.S.M. go to aprox 63k and so on. Is the brass made only to withstand the specs? (give or take 10%)
Or are they all the same.

31 May 2005, 21:06

short44

I dont think they make it stronger for each type of shell " 30-30 308 " but say each brand has a differant softness to them, I think its Norma or Lapua that has about the softest brass, but for say a 30-30 is thinner than for a 308, for use with the higher PSI.

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01 June 2005, 07:12

cal30 1906

They all vary but the brunt of the pressure
seems to be in the web area if the brass is
built heavier in certain areas I would speculate that it is in the web.
This seems to be true in the old pistol cartridges rolled vs drawn?
No expert just blips of info I have run across.

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