TL;DR: 22 Hornet vs 223 Remington
For shots under 200 yards and small varmint, the old school feel of the .22 Hornet is a great choice with low recoil. The 22 Hornet is NOT for deer ...
TL;DR: 6.5 Grendel vs .223 Remington
The short and sweet summary is listed here for those who want to cut to the chase...
The differences between 6.5 Grendel and ...