I just bought a Glock 20 which is Glock's fullsize 10mm Auto. I think this is probably one of the most underrated combat/defensive pistols ever. It offers 15 rounds of standard magazine capacity. Right now both the included mags are loaded with Double Tap's 180 gr Gold Dot load, which is rated at 1300 fps. Since Mike McNett, the founder of Double Tap Ammunition, is a big fan of the Glock, even so far as to be a moderator at the GlockTalk forums, he tests this ammunition in a Glock 20 with its stock 4.6 inch barrel. This means that the Glock 20 offers energy comparable to a .357 Magnum with greater frontal diameter and the potential for greater mass while offering 2.5x the standard capacity of most revolvers. At 27.68 oz unloaded, the Glock is also a good 10 oz lighter than the 1911 Gov Model and still offers more than twice the magazine capacity. Plus the Glock provides a good 150 to 200 foot pounds more energy than the famed Gov Model and if I might be so bold as to suggest, offers a far better value than most 1911s as it retails for under $600. The Glock is arguably more reliable, is certainly easier to field strip and maintain, and is of similar practical accuracy for intended applications. The Glock's finish is first rate, the pistol as a whole has established a reputation for being very durable, and for being very simple to work on when parts do need to be replaced. Despite all of this, the Glock 20 remains comfortable to shoot even with some of the hottest ammunition on the market. Recoil and muzzle flip of the Glock 20 with the afermentioned loads are not any more severe or daunting to me than my dad's handloads driving a 230 gr Gold Dot to 950 fps from a Springfield MilSpec. I credit this to the Glock's low bore axis, polymer frame, and grip angle and width, which help distribute recoil energies. Long story short, I am a very big fan of the Glock 20 and the 10mm Auto right now. However, of all the advantages this platform offers, ammunition availability and cost are not among them. If these factors are important to you, I suggest something more along the lines of the 9x19 or .40 Smith and Wesson, though you may still want to seriously consider Glock.