-Sped up Deploy Duration to 0.6 seconds from 0.66.
-Reduced Spread Decay to 10 from 15.

-Slightly tightened spread again. Last update was a bit too much. Is now Pitch 2.6, Yaw 5.525.
-Increased Spread Per Shot back to the vanilla value of 20 from 6. Mostly a cosmetic change.

THE BALANCE UPDATE
-Increased number of pellets per shot to 10 from 7 (vanilla was 11).
-Reduced damage per pellet to 25 from 36 (vanilla was 23).
-Increased PenetrationPower from 50 to 68.
-Slightly widened spread.

So the idea back in the day was to shoot fewer, deadlier pellets to remedy how Commons would occasionally be gibbed heavily and still survive the blast, especially on harder difficulties. With less, higher damage pellets, the player could more reliably tell visually if a Common was killed from a shot or not, while retaining the same total damage per shot as the vanilla Autoshotgun.
The problem came in when I realized recently that fewer pellets means less pellets that can pierce into hordes, which actually hurt how many Commons could be killed per blast. As listed above, I've now set it to something much more reasonable, giving the Autoshotgun the same pellet count as the Pumpshotgun while making it take one less pellet to kill a Common on Expert. This should be far more well-balanced than before, and closer to the vanilla experience as well.

Reduced accuracy slightly and corrected incorrect accuracy value listed in description.

Update:
Reduced number of pellets to 7, upped damage to 36. Same damage, better feel. See updated description for details.
Reduced accuracy slightly for better horde-busting.
Increased deploy delay (time after switching to weapon before you can shoot) from 0.45 seconds to 0.66.
Slightly improved description.

Tweaked damage and pellet number, leaving total damage per shot the same. More damage per pellet, but less pellets for a more genuine shotgun experience.

Fixed an error in the description stating a change to the ammo type that is no longer applicable. Thanks to "ShadowX & Falerin" for letting me know of this most shameful error. No really, sorry for any confusion. :)

Tweaks to movement-based spread.

Reset ammo type back to AUTOSHOTGUN ammo.

Minor fix.