Mr. Davis: As usual, people can't resist badgering an OP about his choice of self-defense caliber..Many have chosen to ignore his question in favor of veering the thread off track..
After reading your post, I re-read the entire thread. I cannot find one instance of somebody "chosing to ignore his question" and badgering the OP about his caliber choice. Nearly everyone discussed .380-specific ammo, and some discussed issues about feeding HP vs FMJ.
Mr. Davis Again: without knowing those details it's flat out rude and presumptuous to lecture him about the need for a fancier whiz-bang caliber
I feel this is directed at me, so I shall respond. If I am wrong, then in future include a quotation when you are addressing other posters in a thread.
My first two paragraphs spoke specifically about the Delaware State laws, which the OP asked about, and then described the type of projectile that would be favorable for a .380 platform with justification for those parameters. The specific choice of brand is left up to the user after some trials, as their particular firearm may prefer one over the other.
In the third paragraph, I added an additional comment that there are other calibers that can be launched from equally concealable platforms that will, under the same conditions, out-perform a .380 in terms of immediate incapacitation, which is dependent primarily on damaging the CNS.
In order to damage the CNS, a projectile must achieve sufficient penetration and deliver sufficient energy to damage the structure, assuming shot placement is equal. Neither a Glock 23 .40S&W or Glock 30 .45ACP are "
fancier whiz-bang calibers," or platforms, they are calibers that have proven themselves with well over 100 combined years of immediate incapacitation of attackers, and platforms that are concealable and perform admirably.
When the OP admits problems researching whether FMJ is legal to carry for SD, I am going to make an assumption that they probably aren't well versed in the biology and physiology of ballistic injury mechanisms. Providing that information for them to consider when making decisions in the future is not rude, it is part of why forums like this exist, to share information.