Thread: . 284 Winchester

Originally Posted by Puffin

From my online searching on this 284win-specific topic (embarrassingly extensive) the anecdotal reports were for an effect on accuracy rather than early pressure signs. < 0.003" ( 1.5 thou each side) gave flyers that were absent for larger clearances.
.004"-0.006" was thought to be a good middle ground between avoiding this effect and working the brass unnecessarily hard.
So, yes, at 0.006" I think it might be something else. What were the signs in the Lapua brass in the T3 please that led you to call a halt to the load development ? Ladder? I'm not sure I follow that. What about the cases dimensionally and extraction?

Heavy bolt lift and ejector marks on brass at charge levels lower than I expected the max would be.

After I neck turned a bit more things improved and I could run higher charge weights. But I still can't run it where I thought I'd be able to.

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