Aggiedog, one of the guys in our crew has taken a bull each of the past two years shooting generic rem core locks out of his 7MM mag. Any premium bullet would only be a plus. I've always luged my 13lb .338ultra, the idea is to get my bull first, then switch over to a lighter rifle for mullies. Doesn't always happen as planned though. So I picked up a .270WSM this year for future use. Great deer caliber, plus shedding 5lbs is sweet when it's your turn to do all the walking.