The FN in 9mm is the same exact nose profile as the 38 FN. Superior for game. It will feed well in most 9mm auto pistols. As for your AR15, I have no idea how it would feed. For long range you definitely should use a heavier bullet, like 130 gr, which will be quite a bit more accurate due to it's longer bearing length.
If live target use isn't on your agenda, you'll perhaps be happier with an FNB2, which has a more graceful ogive and smaller meplat, which will make it feed more reliably and range out farther, than the FN, when comparing identical weight bullets.
