That sounds very uber my friend.
Again, the definition of Uber is something I hate seeing thrown about on these boards because of what it does. It leads to "The Greatest Swordsman in Tamriel" displaying skill slightly higher than the average high school or college student who spends much of his time behind a computer. I don't like how timid everyone on these boards are when it comes to creating a character because of the fear of "Ubering". From what I've seen, the proper "Ubering" (Which I see as synonymous with "Munchkin") rule is designed to accomplish the following:
A. At Character Creation:
1. Eliminate absurdly young characters with improbably advanced skills, like 14-year-old people with the magical power of an Archmage.
2. Eliminate inexplicably or poorly-defined skills from characters, such as characters with the line, "In addition to (expected, mostly non-combat, skill list), he's also a master swordsman."
3. Eliminate or reduce Improbable events in one's background, such as destroying an entire goblin raid without prior weapons training, inheriting a ridiculous position with no strings attached from a Convenient Relative or Friend (Uncle Ned gave him an entire ebony mine and command of half a legion of footmen! And ONE BILLION gold pieces!)
4. Anything that has no effect on a character beyond increasing the character's power level, without defining them.
B. In game:
1. Prevent the player from bypassing a conflict by bringing out a new power that shouldn't have existed prior to then.
2. Summoning mundane weapons as the player feels the plot demands.
3. having dumb luck and the forces of the universe bend over to save your character from a superior combatant.
4. Having an "unskilled" PC achieve greater combat prowess than Pelinal Whitestrake, greater magical ability than Vanus Galerion, or stealthier than Rajhin.
My khajiit character is Powerful, yes, but he's not "Uber". His mastery over his body is a defining character trait, and not out of sync with Tamriel's lore. Bruce Lee in his prime could still beat my Khajiit in a martial-arts duel, despite the khajiit's magical enhancements. Also, considering the situation, his power is also a liability and possibly a source of drama. Weak heroes make weak stories. Awesome characters make awesome stories.
Also, you really underestimate the power of the musket-ball. They are actually far more deadly than our modern day bullets, and hurt a HELL of a lot more. If your uber martial arts master was hit in the chest with one, he'd go down like a sack of bricks, and even if he didn't die right-away, he'd die a few days later from serious infection. Also, headshots aren't impossible to pull off. In the hands of a good marksman who knows the gun he's using very well, they could easily score a headshot.
Musketballs can do significant damage to an unarmored target, but just bounce off metal plating. And almost
nobody can "easily" score a headshot, contrary to the easy gun-handling of FPS. I'm not sure I like how much the OP has advanced the guns... Already the age of 5-shot repeaters? That's pretty advanced... but
is more fun, I guess.
Historically, in the Renaissance and early Imperial-era firearms, crossbows were superior in performance but expensive to manufacture the body and weapons for. Guns, on the other hand, were
dirt cheap. Seriously, it's a simple tube that shoots whatever object fits down the barrel with a very simple explosive compound. I figure PC's would shun them, because the only way early guns were effective was in mass volleys. The longbow is the best weapon available, but using one of those is like a Martial Art, something you have to dedicate your entire life to (Use even reshapes your body!).
And again, the random variation between shots from our rifles make an
intentional headshot against a moving target impossible without Gun Fu.