Has anybody ever done this? I have a good sight pusher but I’ve read that they are really really really bad to deal with. Of course it may have been someone using a brass punch that was complaining. I dealt with an MP 2.0 once, and that was terribly difficult, don’t want to tangle with something similar.
I’m just wondering if the rumors about the Beretta are true.

Mine were EXTREMELY difficult. Harder than an M&P by far. The tightest set of sights I've ever dealt with. Broke a cheap sight pusher tool, and didn't want to use my good one after that. I ended up taking it to a local gunsmith who is better equipped to do them (and has experience doing it) and paid him to swap the sights.

The rumors are true. Beretta uses a hydraulic press to install their sights. You aren’t going to move their sights with a punch.

Thanks.
One dude on YouTube removed a set using the same Wheeler site pusher I have, he claims you have to go right to left.
I’ll reluctantly pass. There used to be a decent gunsmith about 15 miles away but he hightailed it for Tennesse. For an area with a million residents and lots of shooters/hunters there is a dearth of ‘smiths.
Might have to send them to LTT.

Yeah, don't try it yourself. If you can't find a reliable local smith I would send it to LTT.

I've swapped sights on 3 PX4 Storms using a universal sight tool without too much fuss. It's not impossible, just make sure everything is lined up and take your time. I wouldn't attempt it with a punch however.

I would Kroll it and let it sit. If the sight pusher doesn't work with easy to moderate force, you can always take it to a smith. I've found the sight pusher is worth it over a hammer and punch. Also, it helps if the pusher matches the sight profile of the sight. If it only contacts on a sharp edge and doesn't move easily, it goes to a smith.

That being said, I had a Kimber, which everyone said is super pressed in, and I was almost disappointed it came out without effort. Sometimes you get lucky. The trick is to know when a task is beyond your ability or equipment.

If I decide to give it a shot, I’m using a Wheeler sight pusher. I have no intention of trying to beat something out with a brass punch. If it doesn’t go well, I’ll just stop and find someone else to do it, even if it means sending it off to Langdon Tactical.
I learned one lesson with that miserable M&P sight. It was hard to get it off and just as hard to get the new one on. I would tighten then rap the side of the pusher.
I got it in place but during that process, I must have rapped it too hard and I no longer had a night sight. The vial must’ve cracked.

I understand your situation. I've marred up a slide with stubborn sights even with an excellent pusher. That's why I think a good local smith or LTT is a safe option.

I guess the other thing to remember is that some sights are oversized so you can fit it. Trying to force those in often results in peened sights or slides, and sometimes a broken sight pusher.

I put night sights on a Springfield XD and the only way I got old sights off was a cutoff wheel. Please be careful if you go this route.