Capt and Coach

I have “succumbed” to buying a couple auto loaders. I have a Sig226 9mm and Kimber Custom II in 45 ACP.
The only “hiccup“ with the Sig, and non adjustable sights, was changing the point of impact. I can not remember, but I think I was low with 124 gr and went to 147 grain and the point of impact is right on. I had bought and replaced the original sights, but still had POI problems until I went to 147 grain.
In the Kimber I shoot 230 grain full copper plated ammo. I have 1 Kimber mag and 3 Wilson Combat. With the WC, after 3-4 shots, the next round would not feed. It would get partially out of the mag and jam. Knowing next to nothing about auto loaders I asked for help at our gun club. Long story short, I stretched the mags springs, a bit, problem solved. Have not had a problem since.
I use 4.6 grains Titegroup with an overall length of 1.20”, IIRC.