10-10-2012, 02:09 PM
Quote:adamjpClose but not quite.
In other words a 20 Titan?
I found the Titan when I was doing research on this cartridge. Problem is that, after the first excitement, there haven't been many discussions on the web since. The Titan and this cartridge both have case volumes right between the 20 PPC and the 20 BR making its performance very close to both. One can speculate that folks could more easily get dies and starting brass for both the PPC and the BR and there's a lot of folks who can advise and counsel on getting the most out of those two cartridges.
This cartridge is different than the Titan, however: 1) The case is designed (on good advice) to be formed and made ready for use with minimum operations; 2) The chamber throat and twist rate (1-8") are optimized for the heaviest 20 caliber bullets. The cartridge should have a fair bit of flexibility in AR frames where it can chuck heavy bullets out of ARs at magazine length -- the .204 Ruger can't do this and do very well in bolt guns running at higher pressures.
One of the subtleties on this cartridge is that, while it is indeed formed from (Hornady) Grendel brass, the case is ready to load after just two operations (unless you are an accuracy freak!). The chamber is designed to allow using the neck wall thickness one gets in forming the brass -- no reaming or turning needed.
[INDENT]Operation 1 -- Run through a 6mm full-length die (will ultimately use a purpose-built forming die)
Operation 2 -- Run through the Hornady full-length size die
Ready to load![/INDENT]
Barrel should be here soon!