Hi
Can anyone please tell me their sizing process for the 20x47 Lapua wildcat.
Im having problems with mine and would just like to see others to see where
im going wrong. Below is how im doing mine :
Take std Lapua 6.5x47 brass and run it through the 6x47 FL die
Then run it through a 22x47 neck sizing die
Then run it through a .260 bushing
Then through a .246 bushing
Then through a .238 bushing
and finally through a .230 bushing
After this i neck turn to 14.25 thou which will give me 20 thou neck tension.
Bullets seat nice (berger 50 grn & 55 grn @ .2035" dia) but there is still a slight bulge at the said junction.
Can anyone who help me to explain how i get rid of this bulge.
I think possibly the fault of the bulge could be that the junction in the die is not a sharp edge where it meets the bushing but indeed a step (somewhere for the brass to flow into during the necking process).
Im not sure if fireforming would help as even though this bulge is small im not sure the case would even chamber with the bolt closed.
Any advice would be really appreciated.
Can anyone please tell me their sizing process for the 20x47 Lapua wildcat.
Im having problems with mine and would just like to see others to see where
im going wrong. Below is how im doing mine :
Take std Lapua 6.5x47 brass and run it through the 6x47 FL die
Then run it through a 22x47 neck sizing die
Then run it through a .260 bushing
Then through a .246 bushing
Then through a .238 bushing
and finally through a .230 bushing
After this i neck turn to 14.25 thou which will give me 20 thou neck tension.
Bullets seat nice (berger 50 grn & 55 grn @ .2035" dia) but there is still a slight bulge at the said junction.
Can anyone who help me to explain how i get rid of this bulge.
I think possibly the fault of the bulge could be that the junction in the die is not a sharp edge where it meets the bushing but indeed a step (somewhere for the brass to flow into during the necking process).
Im not sure if fireforming would help as even though this bulge is small im not sure the case would even chamber with the bolt closed.
Any advice would be really appreciated.
