Is this level of historical inaccuracy acceptable?

I'd go for exaggeration over historical inaccuracy personally. Most people won't know what quantity of [insert explosive here] is needed to do a certain damage. Just look at grenades, their use in film drives real soldiers up the wall.
You have seen the Joe Rogan show about that soldier?



I'm in the it-probably-doesn't-matter-camp, depending on context etc.

Or, does it have to be set in the 1840s/1850s? Could you bump the setting up a few decades?