OK! I have now purchased a base rifle and am ready to begin reloading for it. I have a Remington 700 tactical with a 20" barrel and a 1/12 twist. I plan on breaking in the barrel with some ammo purchased at the local gun shop, any suggestions of brand or weight? What works for you guys with these rifles? The rifle should be here next week and am getting everything that I need in order. What weight of bullet should I shoot, what powder should I use and what is a good starting weight? What brand of primer and brass are you guys using? I will be shooting at approximately 6500-7500 ft and temps between -20F and 90F. I am fairly proficient in reloading but still have alot to learn. If I am doing something that you guys think is wrong please feel free to chime in. I have done a search and havent found anything specific. I really appreciate your guys time and advice. Thanks in advance for all your help.