I am currently down to placing an order for a barrel for a AR10 accuracy build in 6.5 Creedmoor. Before I place my order however, I have two questions that I would like to get answered. First, I am torn between either a 22" or 24" barrel. I know most people say to go with a 24", but I am considering the 22" because it cuts down a weight a little (gun is already pretty heavy without barrel) and I also like the fact that it makes it a tad more manuevable. My question is, how much speed will I loose by going with the 22" over the 24"? I know that if you are shooting a 1,000 yards or more, most people are going to say 24", but I doubt I will rarely go that far (more likely 800 to 900 yards or so). My second question is which gas tube should I go with on either of the lengths of barrel? Craddock Precision list a gas tube option on both barrel lengths of rifle+2 and rifle+3. Which should I go with on a 22" barrel and which on a 24" barrel? What are the pros and cons of each? If if helps, I have a 16.6" handguard and I plan on using a Superlative Arms adjustable gas block and would everything covered by the handguard if possible. I am not sure if the handguard will cover either of the lengths however. Thanks for any comments back.