Remington1816 - Several Model 700 rifles feature 5-R rifling. What is 5-R rifling, you ask? Whereas traditional rifling has six lands, 5-R rifling has just five. The 5-R lands are tapered to
Does the internal diameter of firearm barrels taper? For example a smaller diameter beginning at the chamber ending with a larger diameter at the muzzle? - Quora
How does a minigun keep its accuracy despite the rotating barrel? Doesn't the rotation send the bullets off target? - Quora
Does the internal diameter of firearm barrels taper? For example a smaller diameter beginning at the chamber ending with a larger diameter at the muzzle? - Quora
![Savage 110 Ultralite - 280 Ackley Improved - 22.0" - w/ Leupold VX-3HD 4.5-14x40 - SFP - Side Focus Wind-Plex - Dialed-In-110UL280AI - 180623 Savage 110 Ultralite - 280 Ackley Improved - 22.0" - w/ Leupold VX-3HD 4.5-14x40 - SFP - Side Focus Wind-Plex - Dialed-In-110UL280AI - 180623](https://cdn3.volusion.com/fauxo.ergfq/v/vspfiles/photos/Dialed-In-110UL280AI-6.jpg?v-cache=1649786595)
Savage 110 Ultralite - 280 Ackley Improved - 22.0" - w/ Leupold VX-3HD 4.5-14x40 - SFP - Side Focus Wind-Plex - Dialed-In-110UL280AI - 180623
![Tapered stem geometry provides superior initial fixation stability to cylindrical stem geometry in the setting of severe bone loss: A finite element analysis - Kosmopoulos - 2020 - Engineering Reports - Wiley Online Library Tapered stem geometry provides superior initial fixation stability to cylindrical stem geometry in the setting of severe bone loss: A finite element analysis - Kosmopoulos - 2020 - Engineering Reports - Wiley Online Library](https://onlinelibrary.wiley.com/cms/asset/7642b118-32f3-4572-bfd0-5e28283bf8e6/eng212218-fig-0001-m.jpg)