I've been reloading Remington hulls using Fiocchi primers and have not had any problems in my Browning Cynergy Classic Trap. Fired about 7500 rounds with 0 fail to fire. I switched to Winchester hulls and now have 2-4 light primer strikes per 25. Always the bottom barrel (unsingle and o/u). The gun has less than 10,000 rounds through it. Wouldn't think I have weak springs yet? Anyone had this problem?