I’m getting 3196 fps with a Nosler 150 LRAB in my 270 Winchester just using the book maximum charge with 210m primers. Tight groups too, but it kicks like a 7mm mag.
Of course I cannot do pressure measurements but extraction is smooth, primer pockets stay tight & no excessive case stretching. After market 25” Benchmark barrel gives me the edge over the 22” factory barrel guys
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