I was talking specifically about 300 Rum brass because that is what I tested.
Yes its longevity can be poor if you load it to get the same speeds as other brass, say Lapua in 338 Lapua Mag for instance.
As I said it is very nice brass, in the 338 Edge I believe there are better choices, it won't stand up as well as Remington.
Yes it will last very well if loaded to a reasonable level, but so will all brass, if it doesn't it wasn't loaded to a reasonable level for that particular brass in that particular case.
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