Hornady litemag loads are 2.73 OAL. Most magazines are 2.85 max. Check the throat on your rifle .020 to .030 off the lands works in my rifles. The OAL will vary depending on the point shape of the bullet you use. A Speer 130 or 145 will touch the lands in my rifle at 2.78 a 140 Sierra at 2.83.
Good luck
-Doc-