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How tough is Norma Head-Stamped 300 Win Mag Brass?

 
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Old 12-10-2012, 10:42 AM
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Re: How tough is Norma Head-Stamped 300 Win Mag Brass?

Norma brass is going to be tough to find. I use RWS and 77 grains of H-1000 with 208's and absolutely no pressure signs and 2900 fps. Can't get any faster than that out of any brass on the market. The brass is thick, and after I uniformed the primer pockets I still have to seat them on the press because of tight primer pockets, going to anneal every third firing and hope to get 7+ firings out of it. I fl resize (barely bumping shoulders back) after annealing and neck size with Lee Collet on the two firings that I don't anneal.
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Old 12-10-2012, 10:51 AM
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Re: How tough is Norma Head-Stamped 300 Win Mag Brass?

Quote:
Originally Posted by jsthntn247 View Post
Norma brass is going to be tough to find. I use RWS and 77 grains of H-1000 with 208's and absolutely no pressure signs and 2900 fps. Can't get any faster than that out of any brass on the market. .
This is a good example of the difference in rifles and powder lots and why one needs to work up loads slowly. I have seen the same load in 2 300 win Sendero's in RWS brass that was too hot at 76 gr. But was fine at 74 or 75. Both the same rifles would chrono faster and would shoot the 77 gr load in WW or Lapua brass. This is also the same case with my 300 win custom testing Lapua and WW vs RWS brass. Lapua will spank the RWS for velocity every time due to it's larger case volume. The RWS is very very tough, but this is why I stated before you will give up some velocity with it. Velocity data was from an Oehler 35P.

Jeff
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