Issue resolved thanks for you're help fella's. I ended up screwing around with it for quite some time but I solved it. I talked to a few of my buddies who reload and one of them suggested like briman to back the die out 1/2 turn and try it so i gave that a shot it still didn't quite solve it so i ended up backing out 7/8 turn and bingo the donut went away and now they chamber fine. Seems a little odd to me but its working. I threw all of that brass away. The brass i was using was once fired remington factory brass what struck me as odd to begin with is that once fired 243 brass needed trimmed they were right at max thats the first i ran into that coming from a factory load. Any who i loaded up a couple combo's and the gun really seems to like 41.5gr of IMR4350 book max after building up of course with CCI 200LR primers. I was able to stuff em in right around 3/4" at 100yd which pleased me for only tring 3 different loads. I'm just glad to have the whole issue outa my hair. Thanks for you're help.