First posting here, hope to get this correct! I am a long time hunter and shooter but new to long range shooting--to me 300+ yards. Never had any real training, mostly just trial and error. I have learned to be a decent shot but really want to take things to the next level. Looking for suggestions on introductory books, videos, instructors, whatever you more experienced folks might recommend to help me become more familiar with terminolgy, technical aspects, rifle maintenance etc. Thanks in advance for any help!