I find this interesting... I have 2 lil 25 autos, & built a custom 25 ACP revolver ( to replace the 22 LR ), & have shot many reloads & factory loads in all 3 guns...
a couple of "my" findings...
old ammo & "some" brands are unreliable in my Colt & Berdinelli compact autos... I've had both light strikes, & miss fires... everything but the oldest "junk drawer" loads fire in my revolver... however I have run into some that are too long to work well in my tightly chambered revolver...
Reloading... I've learned a lot... since the revolver was to replace the 22 LR, I wanted 2000 cases available to reload for this gun... so I've bought many 1000's of mixed head stamp range brass in an attempt to get matching head stamp cases for each gun... I chose to keep R-P brass for the revolver, & FC brass for my lil autos ( mostly based on numbers collected )... in 2000 R-P cases, I noted 3 different sizes of flash holes, & a range of .015" of case length... the 25 ACP is supposed to be semi rimmed, so guns may be set up to chamber on the case mouths, in which case .015" is way too much variation in length ( I've learned from buying a reamer for my revolver, that there are actually at least 2 chamber profiles, & that many European manufactured guns use a tapered case mouth, where the rim is critical for stopping the cartridge in the chamber, & most American manufacture guns have a stepped mouth in the chamber, so the cartridges index solely on the case mouth ) so there are a lot of variables... Within minimum & maximum SAMMI specs, there can be issues in gun function...
some brands of ammo have larger rims ( which can inherently be more difficult to feed reliably ) others have almost no rim... I've also noted some brands ( Aquilla ) that the cases are so soft the rims deform, & can even cup... some ( Winchester ) are so brittle, that even in tight chambers of my revolver, & in both my lil autos, that I get a higher percentage of split cases than I'm willing to put up with... & we haven't even mentioned the wide range of quality guns available... So I recommend you try several brands of ammo & see what works best in your particular gun
so now on to best ammo to use... If "I" were needing to rely on a 25 ACP to put down an assailant, with my compact autos, I'd use FMJ on the 25 ACP... but then I also switch ammo in my 380 from hollow points in the summer, to FMJ ammo during the winter months, when I might need more penetration... I have shot the Gold Dot ammo in 25 ACP, & it "might" be better during the summer months, but think I'd much prefer a FMJ bullet in a compact auto, for additional penetration... incidentally, they do work well in my revolver which has a 6" barrel & which can be loaded both with more, & slower powder better suited to the longer barrel... BTW... the 25 ACP FMJ puts a much noticed increase in "smack" on my steel CAS targets out of my compact autos, than the 22 LR, even out of a 6" barrel 22 LR... may be the FMJ bullet instead of a copper wash, or the 50 grain bullet over the lighter 22 LR bullet, but IMO, the 25 ACP is a better self defense round than the 22 LR... & neither are as good as a 9mm