The cartridges that the 270AR is based on require .473 bolt faces. Is there enough meat on a standard size AR15 bolt head to accommodate the larger case head without shearing locking lugs? If the bolt head is larger will it run in a standard upper and bolt carrier? And what about mags- will it run in a .556, 6.8, or 6.5G mag? Or does it require a .270AR mag? Boosting the power in a AR15 can be desirable- there are a passel of existing cartridges that do that now. Thanks for the info.