I have owned numerous 40cal pistols, from Sigs, S&W's, Glocks,XD40, EEA. I have found the most accurate to be the Browning Hi-Power. I have a Practical model that will shoot the center out of the target at 25yds. Average under 2inch groups with most ammo, and with the right ammo a ragged hole. No other 40cal, not even my S&W performance center 40 would do that. Also the Browning has full case support which is critical in a 40cal. Glock seems to have a Kaboom problem due to unsupported cases, but I feel thier problem is oversized chambers as other 40's that do not have fully supported chambers dont seem to have the Kaboom problems Glock s do. I am not trashing glock as they have some fine guns but they didnt do thier homework on the 40's. I have measured once fired FACTORY ammo range brass from various LEO glocks and some have expanded to the point of bulging at the web. The brass I have measured in some cases have been stretched to .438, the virgin brass is .418. The acceptable case expansion has been said to be .430 max. Most 40's I have owned have been well under that with fired brass. Saying that Glocks feed anything due to thier large chambers, I have also read where most Kabooms have been traced to 180gr ammo. I dont know the list of guns that have fully supported chambers off the top of my head, but when you look in the gun the chamber should be supported to the extractor, also some guns have a little more or less support in the firearms that are not fully supported. I also noted chamber sizes on the 40's I owned varied.
Do I carry a 40, yes I carry a new version Taurus Millenium pro and my Browning Practical. The Taurus has been a pleasant surprise, shooting everything from factory to reloads and is very accurate, but the Browning is the one gun that I will own till I depart this earth.