I'm needing some advise on a good durable hunting scope for my Accumark 338-378. I have been using the Nikon monarch 4x12 scopes but this gun keeps destroying the scopes. They start out parallax free but after about 1/2-3/4 of a box that all changes. Yesterday I had to set the adjustment to 200 yards to have the scope be parallax free at 100 yards. Right now I have 2 of them on their way back to Nikon. Nikon has a great warranty but I'm tired of using it and I want a scope that will hold up. This gun will be used for elk hunting so I'm thinking a 3x9 or maybe a 4x12 would be just fine power wise but what brand will hold up?