It depends on whether or not you reload or willing to spend the money for a rifle chambered in 7mm LRM. I don't own a rifle in either cartridge, but I would choose the 7mm Remington for all around use out to 1000yds because of the large selection of rifles and components for this round. If I was going to take shots that were in the
800-1200+ yd range regularly and not many short range shots, then I would choose the 7mm LRM. I would pick the 7LRM over any other 7mm Magnum for shots past 800yds because it is a very impressive round and is a very well designed cartridge. I'm not much into 7mms but I hope this can help.