Thread: Attempting a new .224 wildcat

Thanks to @NZ_noddy for the loan of the 6mmBR die as I have now got the brass sorted for this chamber.
I sized a handful of 6.5x47lap brass down to 6mm then to .22.
I tested a few in the chamber and checked head space etc as it will be head spacing on the base of the new neck for the first fire form.
Then with a full case of Trailboss capped with wax plug I fire formed a few.






Just a small pop from the blank and the new 40 degree shoulder is formed and the brass is ready to trim to length and re anneal.

Heres the full process from 6.5x47 Lapua to a 6mm neck then a .22 neck then fire formed and annealed. The projectile seated is a 69gr TMK 10 thou of the lands.
.22-250rem far right for comparison.
I finished up going with 46mm case length and have cut the chambers neck to .257 so there is no need to neck turn.

,,