Re: 308win load for 15 yr girl
If all you can get is Horn, speer and sierra, I would look at the hornaday interbond. the 165 will recoil a bit less than the 180's.
If you have access to 150 ACCUBONDS and Hodgdon BENCHMARK I would highly recomend that load assuming you keep the range to what you mentioned. I have seen 1st hand what the 150 AB will do to a bull moose which is bigger than an elk. The velocity was only 2800 FPS to boot. The recoil was very very mild. The accuracy was fantastic. All things concidered, (mild recoil, accuracy, and terminal performance of the bullet) it would make a suitable load for elk for a young female hunter at the ranges in question. Sure there are 'better' loads for elk but all things concidered such as the hunter and ranges used, the 150 AB is a hard load to beat. This is the load I will be using for my wife to harvest a caribou next year for the same reasons. The shots will be close and she is sensitive to firing a rifle and the load is extremely effective.
Limits are only perceived by what has previously been achieved. Push the limits and good things will happen.
Go the distance or go home
Follow through matters. SEE THE FIRE!!!
August 2013 dall sheep: Stay Tuned
August 2013 Antelope: Stay Tuned
October2013 Bull elk: Stay Tuned
It's going a GREAT year!