Hi, hey there, did you know that the whole "Jedi can deflect blasters so Mandalorians used solid-shot weapons to kill them because blocking a bullet with a lightsaber just results in molten metal spraying the Jedi" meme is actually bullshit?
Like, first thing you have to know about that lore is that it was written by Karen Traviss. Traviss is fairly infamous for writing a shitton of military wank and really hating the Jedi, portraying them as cruel, cold, fascist idiots, who are much, much lamer than the cool Mandalorians, who are badass military types and definitely haven't carried out multiple genocides in the past (they have). She was also known for not exactly playing ball with other writers, and ultimately ragequit the franchise when TCW started to include Mandalorians and portrayed them differently. This was not a detail that basically any other writer in anything Star Wars ever actually backs up.
And like, here's the thing... this exists.
That's a Jedi using the Force to deflect bullets with her bare hand.
This is Tutaminis. And/or Force Deflection, it's not really clear whether they're the same thing or not. It's a pretty standard Force ability that a bunch of characters have demonstrated. Obi-Wan blocks both bullets and a flamethrower with it in the 03 Clone Wars microseries. It's how Yoda catches and redirects Force Lightning during his duels with Dooku in Attack of the Clones and Palpatine in Revenge of the Sith. It's how Vader absorbs Han's shots with his hand in The Empire Strikes Back.
It's also evident from the amount of times that the Mandalorians fight the Jedi with normal blasters instead of breaking out their "anti-Jedi" weapons for their ancient enemies. And the fact that the Mandalorians lost their wars against the Jedi.
If solid-shot guns/slugthrowers were the amazing anti-Jedi weapons that totally always worked against Jedi, then we'd see a lot more slugthrowers and a lot fewer Jedi. We see the CIS' Droid armies fight against the Jedi for three years, we see the Clones being designed from the get-go to kill the Jedi at the end of the war and being highly successful at it, we see the Empire hunting Jedi for the next 19 years and the rest of the Galactic Civil War after that, and y'know what they have in common? None of them use slugthrowers. They all just keep using blasters.
The answer to "How to kill a Jedi" equation has traditionally been depicted as "Use more blasters than they can actually physically deflect."
There's also the detail that Jedi are precognitive space wizards who can move with superhuman speed. If you're actually in range to shoot one with a gun, they'll sense you, evade or block with the Force, close the gap before you can chamber the next round, and revoke your Hand Privileges.
Even the "You'll kill them with a spray of molten metal from the melted bullet!" thing doesn't actually track with what we see on-screen. At the climax of Revenge of the Sith, we see Obi-Wan and Vader fight in the middle of an active volcano. They get splashed with showers of lava a couple of times, and at the end of the fight, both of their clothes are scorched and burned from the embers. Obi-Wan continues to wear his charred robes throughout the rest of the movie. And he's fine. No lava burns. Neither of them actually gets hurt by the lava until Obi-Wan cuts Vader's limbs off and he can no longer move or protect himself, and even then, Vader survives getting burned to a crisp by being really fucking mad about it.
So yeah, it's nonsense. A dumb "Hurr, Jedi are so lame and my unproblematic genocidal warrior race could totally kill them super-easy" take written by Star Wars' own version of Ken Penders.