I agree with M1 Garand, there are plenty of good bullets for the 358. I reload, and my go-to bullet is the 225 grain Nosler Partition. However, with the velocity of the 358, even cheaper projectiles like Hornady Interlock's also work well. I will probably never get to hunt Alaska but, my 358 Win works well for large game in the lower 48. For comparison, I also own a 9.3x62 which I would probably choose if I were hunting big browns. But alas, I will probably never have the opportunity to hunt bear in Alaska.
