While it may be true that some inlines don't shoot conicals well, in my experience most inlines do very well with them. My Magbolt shoots the 460NE just as accurately as my Lyman GPH. Both print them right around an inch or less at 100 yards. The 3 Knight Discs that a friend has puts them into less than 1.5" and he's nearly blind in one eye and can't see out of the other.It's just a matter of finding the loads/bullet your gun likes.

I would suggest getting whatever style gun you like that fits you and is comfortable to shoot and carry and find a load that works with it. You will be happier that way. Good luck.