Their are several good calls out there for use in elk hunting. I myself like the Primos Termanator, it is not hard to blow and sounds realistic.

I use a Primos Ivory plate for cow calls and for bugling with a tube. I also have a hoochie mama till they get in close. Also from Primos. Hoochie mama is a good one to make like a couple cows are there instead of just one cow.

My calls include:

2 diaphrams from Primos
Carlton grunt tube
Hoochie mama(sqeeze call from Primos)
Hyperlip single reed also from Primos

Diaphrams are very versatile. You can cow call to stop a bull while at full draw. Very realistic bugles also. The sqeeze calls allow you to sound like a herd. You sqeeze and use your diphram at the same time. The hyperlip is good for estrus sounds. You can get a real good pleading call with it.

Hope this helps.

I USE THE CARLTON MEGA BUGGLE AND THE SQUEEZE ME CALF CALL . YOU CAN USE THESE TOGETHER BY TAKING THE REED OUT AND PUTTING THE SQUEEZE ME CALL INSIDE .THIS HAS WORKED GREAT FOR ME THE LAST 3 TIMES I HAVE GONE ELK HUNTING ( BULL AND COW ).