You will love the .243 WIN caliber...while I don't have one in an ADL...I do have several of them and my daughter and niece both hunt with .243's.
We have hunted extensively with that caliber and have used several different bullets. The heavier bullets (100g) tend to perform better and be more consistent...I have had the best luck with the older Nosler soft-point bullets in 100g (they have been discontinued some time ago) but the 100g Partitions and Ballistic Tips and 100g Speer soft points have also performed very well for me in just about every .243 I have had. I have also successfully built 80 FMJ (Hornady) loads for my brother and 55g Nosler Ballistic Tips (varmint) loads for some 'yote hunts. My powders of choice for my .243's has been IMR 4895, H4831sc and IMR 4064 with Remington 9 1/2 primers.