I am considering purchasing a book and some videos by G. David Tubb and/or a video by Darrell Holland about long range shooting. The book by Tubb is titled "High Power Rifle" and the two videos by him that are of interest to me are titled "Long Range Rifle Shooting" and "The One Mile Shot". The video by Holland that I am interested in is put out by AGI (American Gunsmithing Institute) and is titled "Long Rnage Shooting for the Hunter". Have any of you read/seen these? If so were they good and helpful and informative products? Would one be better than any other? I am interested in becoming a better shot from the bench and from field positions and feel I could profit from some instruction. Thanks, Rufous.