I replaced my triggers with Rifle Basix triggers. My .223 is set at 8 oz., and my 6mm at 11 oz.
I also, eventually, got rid of that damned J-lock. Besides the firing pin spring being coiled up like a snake inside the bolt, I had the J-Lock on my then brand new 6mm decide to lock itself under recoil when I didn't have a J-key handy. Believe me.....when that happens, if you don't have a key, you are completely out of luck. No amount of cussin' will make it shoot.
In fact, I didn't know the J-Lock was the source of the problem. I'd fired about 20 rounds in one session when suddenly, it just quit firing. Light pin strikes on the primers was the only evidence of a problem...besides not shooting. The J-Lock, by all visible signs, was still in the unlocked position. But, it had engaged just enough that it was hindering the firing pin travel, and causing it to short stroke the primer.
I've had a handful of people that should know tell me that the way the J-Lock is designed, that such an occurence is impossible. I know differently.