Another plug for ethics stainless statics. I've ordered quite a bit of stuff from the fellow. Excellent customer service and the stuff is great.
If you place an order with him, go ahead and get the field point test kit - you'll thank yourself later and save on shipping. These are the easiest way to figure out what works best.
I shoot RIP TKO Elite 300's, at 70/30 an 28.75" C2C. I could get away with 225 grains up front(ethics static/exodus 125). 250gr got a little squirrelly, but I could back off draw a little and get it to tune. 275 was a definite no go. This setup with 225 up front was by far the best shooting combo I've landed on. I wanted a little more weight so I have been tinkering.
I am setting up x impact .250's with 285gr up front. Early returns these fly well, and I can likely get similar to the above setup.