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Summary: H&K USP compact .40 caliber ammo should match the pistol exactly. Find out what ammo to use on an H&K USP compact .40 caliber pistol in this free video on handgun use.
Jeff Brewer has been the owner of Patriot Firearms for over 12 years. Jeff owns several firearms and has been shooting them since the age of 16. Jeff is a hunter, sportsman and...read more
"In this clip, I'm going to show you how to identify the proper caliber of ammunition for your H&K USP compact pistol. The reason why we're doing this is that it's very easy to get mixed up whenever you're loading your firearm. Your firearm, there are several different types of ammunition that the H&K USP pistol will hold, and one good way to do this is--there are several ways, but one way that I like to do is first and foremost, take a look at your magazine. Your magazine will tell you what caliber of ammunition you're using, and also take a look at your gun. On your firearm, it says right on the barrel real close here, right by the model of the firearm, it says that it is a 40 Smith and Wesson. That will tell you that this firearm right here is a 40 caliber or 40 Smith and Wesson caliber. The reason why we want to know this is it can be also misconstrued by any other caliber, because other calibers will fit into this chamber. And for the reason that we first said, it is very important to identify the caliber of ammunition which you load in your H&K USP compact pistol."
eHow Article: Identifying the Caliber of H&K Pistols
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