[quote=@Archmage MC]
There is also no reason to limit force users, as a single WW1 era conventional weapon can slaughter legions of Jedi and Sith up to and including Vader levels of power. And this weapon type would have great issues with droids, giving a great power triangle if PvP is ever a factor.

[/quote]

Untrue. Slug throwers are deadly against Jedi as they aren't used to fighting kinetic weaponry, and their go to response to being shot at is to block with a lightsaber. As [@Ellri] will tell you that isn't the best thing to do.

Bullets are physical items that can be caught with the Force. In terms of tech level it's The Old Republic, so things from around the period of 3647BBY