A.J. Brown Arms now has available commercially-loaded .358 Hoosier ammo with Hornady Interlock spitzer bullets weighing 180 and 200 grains. He also has some loaded with Hornady 200 grain FTX bullets. And, he recently received a limited supply of ammo loaded with the new Barnes TTSX FB (tipped TSX flat base) premium copper bullet weighing 180 grains.

For those who reload, or have an interest in ballistics, advertised ballistic coefficients (BC) and estimated* approximate cartridge overall lengths (COL) for these loaded rounds are:

Hornady 180 gr. Interlock spitzer (BC = .248) COL = 2.50”)
Hornady 200 gr. Interlock spitzer (BC = .282) COL = 2.55”)
Hornady 200 gr. FTX spitzer (BC = .300) (COL = 2.57”)
Barnes 180 gr. TTSX FB spitzer (BC = .295) (COL = 2.73”)

*These cartridge overall lengths work fine in my rifle. Bullets seated out further may cause the bullets to contact the rifling when chambered, possibly creating high pressures. A too long COL could also lead to a bullet stuck in the rifling (and powder spilled in the chamber and action) if the chambered round is extracted without firing.

Following is a link to a thread which includes a pic of a target shot with some of the 200 grain Hornady Interlock bullets launched from a T/C Encore barrel: http://www.antlertalk.com/atforums/viewtopic.php?f=32&t=3785