Springfield loaded 1911 alternative

So my brother has a springfield loaded that has given him problems since day one. Most of the problems have stemmed from his reloads. Now, you can say, "stop right there. there is the problem. Make better reloads or shoot factory"

BUT, making better loads takes time, and we have tried his loads in a variety of other 1911's and in non-1911 45's and they work pretty well. So he's decided the springfield is just picky. Tight tolerances and the like. So he's probably going to trade it away.

Any recommendations on a good 1911 for under a grand that might be a little more forgiving of mediocre ammo? ** MUST BE STAINLESS **

I had a taurus 1911 one time that ate everything I threw at it. I hear very good things about metroarms' guns (though I think they are not stainless). Then there are the usual suspects, the ruger 1911, a colt gold cup (used). Any opinions about the smith E-series 1911? Or the sig 1911's? Other suggestions?

bluz, that's standard boilerplate on all guns.

I had considered trying to have the chamber opened up a smidge. But I didn't know how hard and or $$ that might be.

he's using a 200grn lead bullet, RNFP over 4.6 grns of unique. It's a little light, but not horribly so. Ejects about 5-7 feet. What it's doing is the slide is not going all the way into battery. It's hanging up about 1/4 to 1/3 of an inch shy of fully closed. His bullets are seated what appear to be an appropriate depth. OAL is 1.2". when the bullet is chambered, then ejected, no rifling shows on the nose and the bullet has not been driven further into the case. I did not have a chance to pull a bullet and toss a mic on it, but he says they came out of a box labeled 45acp. And he has thousands of them. They came from a dead grandfather on his wife's side of the family. (along with a lot of RCBS dies in various calibers, powder, primers, and a dillion 550) They run through a lee FCD with out too much resistance, and they work fine in 2 other (older colt) 1911's. Thus, while they may not be the greatest reloads ever, I don't think they're just loaded wildly wrong. They do fail the plunk test. They require just a little pressure to seat, and a fingernail with a little pressure to extract. I did not try to plunk them in the other 1911's.

It seems to me like the springer just has a tight chamber that doesn't like a fat lead bullet, and while I think it could be that his loads could be adjusted and possibly made to run, he has kind of lost faith in the gun and would like to try something else.