I will eventually buy a 11.5 this summer and i am already looking for ammo. My first choice (or option here) is the 64gr and 60gr. These will not fragment but meet the FBI's requirement.
You can find the Winchester at your local Canadian Tire. I placed an order to a local store for the 60gr Nosler.
For 75-76gr, Guess you will have to call: Ellwoods, TSE, Williams and of course Milarm where i bought my 68-69gr for my 16". Great price for ammo! Just place an order and stock. Shoot regular Fed/Win for practice.