It's a good idea of theirs to make it .499, not .50, because the proposed statutes whose aim is to ban .50BMGs would actually ban all ".50 caliber, centerfire" guns, which means 50BMG, .50 AE, but NOT anything smaller OR larger than .50 cal. .499 -sized cartridges would not be affected, under the wording of the bills proposed so far, even though practically the same. Course, it's only a matter of time before the moron anti legislators figure out how easy this end run is, and change the wording. I can't wait to finish developing my proprietary cartridge, the .501 BMG.