Hi folks
So I've been working up loads for my 284, its a tikka action with a 28" TF Varmint Barrel.
I've been using Norma brass, 168gr Berger VLDs and 2209. I've run through loads from 52-53.5gr.
I get good half inch groups at 53 grains but get excellent sub half inch groups at 53.5 grains ,
The issue is I have ejector marks and sticky bolt at 53.5.
Is necked up lapua brass likely to hold up a bit better? I have heard that norma brass is on the soft side.
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