For the handloaders, do you guys best the accuracy of the better ammo i.e. Premium defense ammo? Seems many guns might not tell the difference, I don't know.
Lastly, seems many guns are fixed sights, does the industry have a standard weight they use for POI/POA? Guessing 115 or 124 if they do, as I figure the 147 is not so close to the lighter ones.
Guessing the better ammo will do around what, 2" at 25 yds in a quality gun?
Speaking for myself only - my reloads give me the accuracy of the best premium ammo, but at a much lower price, and can be plinkers or hot +P+ loads. IIRC I'm loading 9mm for around $5 per 50; not a big deal for a box or two a month but it adds up fast shooting a few thousand rounds per month. (That is with my own cast bullets and re-using or range pickup brass.)
I think most fixed sights (Glock in particular) are generally regulated for 115 to 125gr loads, but that can vary as much with the individual shooter as with the bullet weight.
2"/25 is a pretty reasonable expectation for decent handloads in a newer Glock, if the shooter is up to it. Most aren't, IME.