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

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Unread 08-27-2007, 10:14 AM
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What is the difference between Norma and Lapua 338 Lapua Magnum brass?

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
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Unread 08-27-2007, 04:04 PM
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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.
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Unread 08-27-2007, 04:34 PM
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Use the Lapua brass it's better for the hotter loads.

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Unread 08-27-2007, 05:41 PM
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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.
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Unread 08-28-2007, 12:18 PM
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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.

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Unread 04-02-2010, 10:06 AM
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Re: What is the difference between Norma and Lapua 338 Lapua Magnum brass?

Hey guys

This is my first post here, I just found this website and really like it.

I'll add my own experience with Norma brass -

I've got a 378 Weatherby (Mark V) that I used to shoot / reload for (I dont shoot it anymore, I just got tired of it to be honest, so I dont reload for it anymore. Need to sell it one of these days)

All of the 378 Weatherby brass I've ever seen came from Norma (does anyone know another source??!)

Anyway, I've shot / reloaded for a number of different high power rifle rounds, and with the .378, it ALWAYS seemed like high pressure signs came way early. As it, a grain or two down from what the reloading manuals max loads gave pressure signs like I'd get with a grain or two ABOVE max for most other calibers (.300 win mag, 338 Rem Ultramag, 7mm Rem mag, etc)

One of the signs I'd see first is brass flowback into the ejector hole - y'know the bright shiny little circle on the headface

My buddy has a 338/378 weatherby (on a P17 enfield action, Hart barrel) that I picked up for a good deal and later sold to him. He gets the same results. Max loads look OVER max

Anyways, years after I started seeing this, I read that Norma INTENTIONALLY makes their brass soft - one opinion on that was that they (Norma) figured that if the brass showed small pressure signals at max loads, then reloaders would know exactly where that limit was and would not go over it

I have no idea if that is WHY they do it, but Norma brass sure is soft on the head. Its a real pain too, it is disconcerting to see pressure signs, and it also makes the brass wear out quicker (which sucks even more since some of these calibers have pretty expensive brass!!)

PS. I had a 338 Lapua (Blaser LRS) for a short time and reloaded it with both Lapua and Norma brass. From what I recall, the Norma brass exhibited the same behavior with that round....
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Unread 08-22-2011, 06:30 AM
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Join Date: Jul 2009
Location: Minnesota
Posts: 19
Re: What is the difference between Norma and Lapua 338 Lapua Magnum brass?

I believe the new Norma .338 is different than the .338 Lapua.
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