A wider variety of 9mm pistols (left) is available, but the 10mm pistols (right) are part of a fast-growing category. The 9mm and 10mm are cartridges with only a millimeter of difference in bullet ...

It may seem silly to compare the 9mm to the 10mm. Even if your ballistics knowledge is minimal, you probably know the 10mm is more powerful. The best 9mm loads will push a 124-grain bullet to about ...

Key Point: The 10mm is every bit as ideal a handgun as its nemesis, the nine millimeter. Many gun aficionados have heralded the 9mm handgun as the ideal self-defense firearm, but despite its ...