1-1.5 wouldn't bother me but guys were getting much worse results from what I saw. Dunno if it was the wiggly rail thing or what but that would drive me crazy too. Personally, I don't want to look at each specific mag and determine if it will run in my gun as I do have a bunch of Gen 3s. Good luck.
The rail was fixed by Bretta, that was only an issue on early guns. I just picked mine up and the rail is solid. It’s only gonna have a red dot on it anyway.
I also believe a lot of it’s accuracy issues come from the trigger. It’s very heavy. The barrel itself is high quality and cold hammer forged.
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