The 243 is the most perfect deer gun there is. Deer are very easy to knock down. If it goes 100yds, it was a bad shot. Period. It should go no more than a few yards, tops. If it does, you are NOT doing your job and owe it to the animal to figure out why.
We've been looking at Bergers for long range shots, but aint tried any yet. Mainly because we figured they were a hard bullet that wouldnt expand. Whenever you see them advertised, its on a 800yd+ shot and its in the high shoulder. I think the only way to break the shoulder like that, that far away is to have basically a FMJ. A FMJ is terrible for hunting unless you smack big heavy bones.
But, that is just my speculation. I've never bought any, so I dont know.