woods
Well-Known Member
350 mag neck die...approx .378 neck diameter
.343 hornady neck die
.301 die....6.5 rem mag full length die drilled out
There is a semi local gun shop that has some 350 mag brass. I think midway has it in stock from time to time unlike the 6.5 mag brass. Gunbroker has 350 brass pretty regularly as well.
Only thing I would do different is add another step about .320". A 7mm wsm or saum die would probably work just fine for the additional step.
I see, you're talking about the OUTSIDE diameter
So .301" would come close to the 6.5 caliber inside diameter
.264"+.015"+.015"=.294"