You may have read about or heard of "Improved" cartridges, or perhaps you are interested in buying one or even having your own rifle rechambered. Long the perennial fair child of gun column writers who convince shooting enthusiasts to "breath new life" into their rifles with a socalled inexpensive, simple chamber modification. But, there is another very ugly side of the story that is far from an improvement at all. Watch and learn why the realities of chamber "improvements" are wildly exaggerated, often zero ballistic gains, high costs at every turn, misrepresented claims of interchangeability, and bitter disappointments. Learn why "Improved" cartridges have dramatically dropped in popularity over the last 30 years, and why you should avoid falling victim to fake news that so many have discovered too late. Don't rechamber or buy one until you watch this!