20 VARTARG
The 20 VarTarg (VARmint/TARGet) is another 20-Caliber cartridge designed by Todd Kindler for varmint hunting. This cartridge is based on the 221 Fireball case and is probably the most efficient of the 20-Caliber cartridges. It is also extremely accurate. Like the 6PPC, it has the optimal bore to case capacity ratio for max efficiency. The VarTarg is popular with varmint hunters because it provides good range (up to 300 yards) and uses relatively little powder, so your barrel doesn't heat up quite as fast. With the 20 VarTarg, long barrel life can be expected. Check out the Load Map below and you'll see that the diminutive VarTarg pushes the 32gr pills up into the 3750+ fps range with much less powder than is used by the .204 Ruger or 20 BR. The VarTarg achieves this performance by using fast, high-energy propellants, such as H4198 and Vihtavuori N120. Todd Kindler reports great accuracy with N120 and the Sierra 32-grainer, running close to 3800 fps. The VarTarg may be the smallest 20-Caliber cartridge in our survey, but it comes up big in efficiency. (Photo is 100% scale.) Currently, Cooper Arms of Montana and Dakota Arms offer factory rifles in 20 VarTarg.
Click Here to download a .pdf version of Todd Kindler's 20 VarTarg article (from Dakota Arms).
No special dies are need to form 20 VarTarg brass. Simply run a .221 Fireball case through a 20 VarTarg full-length sizer die--then load, and shoot. There is virtually no difference performance-wise between virgin brass and fire-formed 20 VarTarg brass, so you don't need two different loads. Right now Remington is the only source of parent .221 Fireball brass. Most 20 VarTarg shooters are satisfied with the quality (and price), so long as the Rem brass is weight-sorted and prepped before loading. There was some hope Lapua would produce 20 VarTarg brass for Dakota Arms, but that deal is off the table. If there is enough consumer demand, Lapua might bring out 20 VarTarg or (more likely) .221 Fireball brass on its own--but don't hold your breath. John (SnakeEye) of VarmintsForFun.com hopes Lapua does produce 20 VarTarg brass: "That will open up a whole new world in the little 20s. I've always thought that the 20 VarTarg would make a very accurate benchrest round with good brass. It seems to be a good combination of case capacity and bullet. Also this will be perfect for the 17 m 4 as all you would need to do is run it in a 17 m 4 FL die, no other forming."
http://www.6mmbr.com/20Caliber.html