As I suspected. Still sounds like a mediocre talent for PvP and useless for PvE, but I'm no expert on Snipers.

Fair enough, still seems rather weak given it costs 2 points and is only marginally useful during kiting in pvp. When in cover you get a buff Unshakable - Cannot be interrupted. So that's not much of an issue. (Might still be interrupt-able if people push you?)

The GCD triggers when you press the button, not when the cast bar finishes, so no. And the GCD is perfectly matching to my cast of Snipe in-game right now, so I can say pretty confidently it is 1.5 seconds.

Yes... but if firing it instantly still gives it a 1.5 GCD, there's no benefit. You're not using the next skill any faster, you're not avoiding being interrupted, and you're not able to use it on the move either way.

I do use F, but Snipe does activate the GCD. That's the entire point.

Unless it removes the GCD on the instant shot, there's no point.

(Just made a Sniper so forgive me if this has been gone over endlessly, but...) Snap Shot: Entering cover has a 50/100% chance to make the next Snipe activate instantly. Snipe's cast time is 1.5 seconds, same as the GCD. You can't move while casting Snipe, because you must be in cover. You can't be interrupted while in cover. So, what exactly does this talent do?