Anyone knows exactly which weapons can be obtained with lucky coins?

[NetNomad]

Hmm, no? Slicers are more accurate than shots or needles, and it's definitely the best weapon type to use in GDV. I never use a shot or needle in GDV, always a Slicer.
I hope you know weapon types have inherent accuracy, if you haven't realized that at your levels...

I don't study these stats religiously... inherent accuracy? So there's something besides ATA itself?

The slicers I use are:
Rainbow Batons on Master Shake & Dusky
Flight Cutter on KillCount++;
Flight Fan on Max(Damage);
Red Slicer on Cyclone

I've never used a slicer on a ranger full-time, so I'll admit to not totally knowing all the little stat quirks you know for them. I would have, but I opted for bazookas on my male RAs for style and utility reasons, and an Umbrella (20 hit) for my RAmarl. So in (Ultimate) CCA, the only time I've really used a slicer is when I've taken Master Shake on some runs there (he's the only one high enough who also has a slicer, but a 45h Rainbow Baton doesn't miss much anyway).