Its 38sc. Pf 170 in my 2011. 125 head, winch spp, 10.2gr ziira 7 powder. These are my usual load data but for no apparent reason exhibited this signs of primer flow and piercing clearly due to excessive pressures. The only thing i changed in the reloading bench was increase considerably the crimp for feeding reliability issues. But Chronoed again and have same 170pf as previous same loads. In 100 rnds had 6 primers pierced and 4x my big stick mag fell while being shot. What have i missed?