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Rick: The Tokarev (7.62x25) and 32 ACP (also 7.62) are common handgun calibers in europe. What we americans consider "small caliber" is usually deemed "adequate" across the pond.
Also, chill out, you are getting way too excited over what is basically a misunderstanding on your end. Also, if you don't know about 30 caliber pistols it tells me that you probably have never read a reloader/handloader manual, which tells me that you probably don't have a whole lot of detailed practical knowledge of small arms and their munitions.
SO LET THE FISKING BEGIN!
1) Yes, people make handguns in 7.62. The Walther PP/PPK, Sig Sauer P230, Beretta Tomcat, various kahr, kel tec, and other CCW pistols all come in 32ACP (aka 7.65x15 browning), One of the most infamous pistols in modern arms history, the CZ52 was/is chambered in 7.62x25mm. The famed mauser broom handle and origional luger pistols also fired a lower pressure loading of the tokarev (it was not called the tokarev then, however, it was the "30 mauser" or "7.62 mauser").
I am reciting these from memory, i am sure I am missing a great many 30cal/7.62mm pistols.
Now that "HK in the 9mm pistol round" that you are talking about; HK has made a great many pistols in 9x19mm, one of which is the P9 series. The P9, of course, shared its roller-delayed blowback operating system with the CZ52. Which, pray tell, "HK in the 9mm pistol round" do you mean? HK also makes guns in 357 sig, 40 "slow & weak", 45 ACP, and 380 (9mm kurz).
Very very few SWAT teams use semi-auto weapons for sniping. I have not heard of a single instance of an SPR or PSG type weapon being deployed stateside for police work. Its almost always a bolt-action and almost always either an FN or Remington 700 in .308 (7.62x51).
Of course now there is a resurgence of anti 5.56 (223) sentiment amongst LEO and military operators alike. The truth of the matter is that the .223 is a terrible antipersonell round and new weapons from DSA (their shorty FAL "OSW" subcarbine), Alexander Arms (the 6.5 Grendel and 50 beowulf), Noveske (their "project leonidas" carbine, based on the AR10), Bushmaster (the 45 bushmaster), and my personal favorite (my bespoke AR15 rifle is one of these) teppo jutsu's 458 SOCOM. All offer superior CQB knock-down power, most from an only slightly modified AR platform, some (the grendel, osw, leonidas) can actually reach out well past the useful range of the 5.56. Barret, LMT, Noveske, and most other "black rifle" vendors also sell rifles chambered in 6.8mm SPC, which is issued to some of our more elite soldiers where 5.56x45 is no longer desireable.
The 5.56 was designed to counter the threat posed by large numbers of north koreans and communist chinese charging troops en masse in north korea. We needed something that could lay down huge amounts of suppressive fire in a lightweight package. The AR platform and its 5.56x45 cartridge has done a commendable job and countering most of the threats that have come down the pike in the last 50 years, but the simple truth is that technology progresses. The 5.56x45 is not the best tool for the job these days and is dutifully being replaced by other cartidges.
My comment was not a mistake, and your response only serves to indicate that you have a lot of reading to do in order to come up to speed.
BTW, my personal carry pistol, an HK USP in 45 ACP, usually has a full compliment of either Remington Golden Sabers or Federal EFMJ's. I will not use FMJ's in an urban terminal-force like situation (I live in the city), I think that it is inappropriate and places bystanderss at risk. Not to mention Golden Sabers offer accuracy that prior to their release was only available with handloads or match cartridges from black hills or cor bon. That's saying something. :)
Oh, and the custom single shot pistols are only fun if they are chambered in the JDJ family of cartridges made by SSK Industries. Make sure that you look up SSK, Noveske, Teppo Jutsu, Alexander Arms, DSA, and the CZ52 before you respond. :)