As far as I'm aware, Aftermath is considered canon.

So if a slugthrower penetrates Stormtrooper armour in Aftermath, then a slugthower can indeed penetrate Stormtrooper armour.

Jas uses a custom made slugthrower, so it's feasible that this weapon could be more powerful than a standard slugthrower:

As a bounty hunter, Jas was a skilled sniper who wielded a self-made long-range rifle that was based on an old Czerka slugthrower. Emari was also good at hand-to-hand combat when circumstances demanded. She was also a good planner who was able to build an improvised map and plan using household objects. In her line of work as a bounty hunter, Jas had to kill numerous individuals

Although, I can't see if it's explcitly stated that it is. Main characters usually use custom or unique weapons. I'm sure there's a trope for that somewhere.

As far as I'm aware, Aftermath is considered canon.

So if a slugthrower penetrates Stormtrooper armour in Aftermath, then a slugthower can indeed penetrate Stormtrooper armour.

Jas uses a custom made slugthrower, so it's feasible that this weapon could be more powerful than a standard slugthrower:

As a bounty hunter, Jas was a skilled sniper who wielded a self-made long-range rifle that was based on an old Czerka slugthrower. Emari was also good at hand-to-hand combat when circumstances demanded. She was also a good planner who was able to build an improvised map and plan using household objects. In her line of work as a bounty hunter, Jas had to kill numerous individuals

Although, I can't see if it's explcitly stated that it is. Main characters usually use custom or unique weapons. I'm sure there's a trope for that somewhere.

As far as I'm aware, Aftermath is considered canon.

So if a slugthrower penetrates Stormtrooper armour in Aftermath, then a slugthower can indeed penetrate Stormtrooper armour.

As far as I'm aware, Aftermath is considered canon.

So if a slugthrower penetrates Stormtrooper armour in Aftermath, then a slugthower can indeed penetrate Stormtrooper armour.

Jas uses a custom made slugthrower, so it's feasible that this weapon could be more powerful than a standard slugthrower:

As a bounty hunter, Jas was a skilled sniper who wielded a self-made long-range rifle that was based on an old Czerka slugthrower. Emari was also good at hand-to-hand combat when circumstances demanded. She was also a good planner who was able to build an improvised map and plan using household objects. In her line of work as a bounty hunter, Jas had to kill numerous individuals

Although, I can't see if it's explcitly stated that it is. Main characters usually use custom or unique weapons. I'm sure there's a trope for that somewhere.