I got a SA 1911A1 last month, I took it to the range (Pasadena Gun Center) today. It has issues. I tried winchester 230gr white box FMJ, remington 230gr green box FMJ, handloads 230gr fmj, and federal 230 gr hydroshocks. With all it had issues going into battery it would feed but stop short about 3/16th of an inch from locking up. I will call springfield Monday, I might also try a heavier wolf recoil spring.
It was new, first time to be shot, My kimber custom classic 1911 had no issues with same ammo and mags. It even does this hang up on a manuel cycle with the release of the slide release. It did it once with me pulling back the slide all the way and releasing it. heck even if I put a round in the chamber with no mag it did this from a slide release.
On the plus side I met my brother there, he brought his 11 year old daughter. This was her first time to shoot, she loved it. She tried a 45 but it was bit much for her. She shot my brothers Keltec 380, and my P-08 Lugar. The Lugar was made in 1917, my Great grandfather captured it in 1918 in France. She is the 4th generation of my family to shoot the 9mm. She did pretty good.

It was new, first time to be shot, My kimber custom classic 1911 had no issues with same ammo and mags. It even does this hang up on a manuel cycle with the release of the slide release. It did it once with me pulling back the slide all the way and releasing it. heck even if I put a round in the chamber with no mag it did this from a slide release.
On the plus side I met my brother there, he brought his 11 year old daughter. This was her first time to shoot, she loved it. She tried a 45 but it was bit much for her. She shot my brothers Keltec 380, and my P-08 Lugar. The Lugar was made in 1917, my Great grandfather captured it in 1918 in France. She is the 4th generation of my family to shoot the 9mm. She did pretty good.