10mm wins in every way. 10mm is a true magnum class round. And, it is shot from a STOCK gun (Glock for example), which can hold 15+1 rounds and be extremely reliable. You can play with wildcat cartridges if you want and modify your gun and deal with possible reliability and longevity problems, or you can just shoot a stock Glock 20 and have the most powerful stock autopistol in the world with 15+1 rounds of magnum class 10mm.
If you want supreme hitting power, then carry a light bullet for shallow penetration and massive energy dump (135-155gr bullets at hot velocities) that makes the proven .357 Magnum look tame. If you want deep penetration, go with the heavier bullet and you get extreme penetration.
Ps- Accordong to some who do it, you can handload a 10mm to 135gr@1800 fps and almost 1000 ft-lbs of KE and still be within pressure limits. Most people, especially factories, just don't load 10mm to it's potential because people are too wimpy and they get upset about the recoil. The .40 Super is new and trying to make it's mark, so they are loading it as hot as possible. It has been said that factories like Corbon and Triton have lately downloaded their 10mm in order to make their new loads (400 Corbon and .40 Super) look better. For instance, Corbon used to list it's 10mm at 150gr@1350fps, but now they lowered it to 1325fps so that the 400 Corbon looks more impressive. When, in reality, the 10mm could be loaded much faster than the 400 Corbon but they choose not to do it.
If 10mm were loaded to the max like these other loads, then it would be obvious to all that there is no need for these new wildcat cartridges. All they are is a re-invention of a cartridge that already exists in a stock gun: the 10mm.
[This message has been edited by CassandraComplex (edited July 08, 2000).]