A couple of other bullets you might want to try as an alternative: the 385 Buffalo bullet has a good reputation in this part of the world for elk hunting. They expand well and are usually found just under the hide mushroomed to about 1". This would be a good bullet to use in conjunction with anon-magnum charge of 100 grains or so.

Also, the 405 Powerbelt seems to have a good balance of penetration and expansion for elk sized critters. This is also a bullet that tends to shoot well at non-magnum charges.

Either of these bullets should have an effective range of 125 yards or so.