There are several DIFFERENT .32 caliber cartridges. The .32 bullet is smaller in diameter than a .380. SOME .32 cartridges are longer, and have more power, such as the .327 magnum. And some .32 pistols are smaller than some .380 pistols, and vice versa. The caliber has nothing to do with the size of the gun.
One can make a pistol much larger than it needs to be, maybe even having an extra-long barrel would make a pistol larger, technically. I'll assume you mean the barrel diameter. Although it would seem that a .380 and .38 would have the same barrel diameter, namely, 38/100th of an inch, that is not usually very accurate. The .380 ACP has an actual barrel diameter of about .35 caliber, or 35/100th of an inch. The .38 Special has a barrel diameter of .357 caliber, or 35.7/100th of an inch. So the .38 Special has an ever so slightly larger diameter.
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.380 is slightly larger in diamater than the .32, and in general, more powerful.
Can I shoot 380acp caliber out of my 32 pistol?
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Small Pistol Primers are used for small caliber pistols, any of the various 9mm calibers such as the .380, the 9mm luger, the 9x18 makarov, the .38 special, the .32 acp, the .25acp etc. and even some larger calibers such as the .40 S&W. Large caliber pistol primers are used in .45 caliber and larger. Still other calibers, such as the .357 Magnum for instance, require primers known as magnum primers.
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What caliber? 22, 25, 32, 380, 9mm?
Yes you can they are both the same caliber .356.
No. There are many low-quality pistols in .380, but this is not related to the caliber. If it is a reliable model, it won't jam more than any reliable larger caliber. Badly designed and sloppily made pistols will jam, quality pistols will work perfectly. For instance, SIG Sauer P230 is chambered in .380 and is one of the most reliable pistols out there.