.30 Thompson Center

[3] The cartridge was initially offered in the Icon series of bolt-action rifles in 2007, which were released at the same time.

While ballistic performance was as expected, consumer acceptance was low and the round has not achieved commercial success.

[4] The 6.5mm Creedmoor cartridge was created by necking down the .30 Thompson Center, and has achieved widespread popularity.

[5][6] As it has been understood that propellant burns more efficiently in shorter, wider-diameter casings,[7] modern ammunition has changed over time to become shorter and wider than previous cartridges.

Although it is somewhat shorter than the .308, the .30 TC fires a 150-grain SST bullet nearly 200 fps faster.