Thread: 257R Experiences

Starting load, light pill, seated into the lands.


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Originally Posted by Dicko

Starting load, light pill, seated into the lands.


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Still getting 40% failure using 95 Berger and the RP brass, will find something lighter? No problems with WW and Norma brass, ex 6mm

Originally Posted by tetawa

Still getting 40% failure using 95 Berger and the RP brass, will find something lighter? No problems with WW and Norma brass, ex 6mm

Ignition failure still or not forming shoulder on first firing?

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Originally Posted by Mathias

Ignition failure still or not forming shoulder on first firing?

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Have necked up to 270 from 6mm then to 257, no problem with WW and Norma brass, good primer strike, just the R/P brass not achieving good primer strike, 40% failure, will get there in the end. Getting excellent accuracy while fire-forming using the old 95 Bergers moli-coated. 15 shots in 25mm, too scared to show it in the 3 shot group thread.