What is the difference between Norma and Lapua 338 Lapua Magnum brass?

[jhegg]

Could somebody explain what the difference is between Norma and Lapua 338 Lapua Magnum Brass? Can you use the same loading data for both? Do they use the same shellholders? Thank you in advance for your responses.
Jim Heggeness

[James H]

I have never tried the Norma brass but am sure that it is much softer than the Lapua brass so it will require lighter loads than the Lapua brass can take. There is some difference in the head between the 2 brands I believe the Norma is slightly smaller and may require a different shellholder.
James

[wildcat]

Jhegg,

Use the Lapua brass it's better for the hotter loads.

Wildcat

[buffalorancher]

jhegg,
I can't speak for the 338 but with the 6.5x284 you are talking two completely different animals. When I started loading for my 6x284 I used Norma and it didn't take much of a load to really loosen the primers. I was sure everyone was full of s**t on velocities until I switched to Lapua.
Lance

[Fiftydriver]

Norma brass is notoriously soft in all calibers it is made in. Great consistancy but will not take pressure.

Lapua cases are very good consistancy, at least as good as norma but have a very hard heat treat on their case head to allow them to handle much more chamber pressure with ease.

I have also found using the two in my Allen Magnum wildcats based on this case that the Lapua case generally has 2 grains more volume on average over the Norma.

Kirby Allen(50)