I honestly don't like them. Especially not when combined with the new 'only one attack action' rule. Consider this - a normal person (6 + 1d6) is going to get one attack action every three seconds. Scan that again:
every three seconds. They can make
one pistol shot in those three seconds, so it's BLAM one thousand, two one thousand, three one thousand. If they're especially lucky, they'll get
two actions: BLAM-one thousand, two one BLAMsand, three one thousand. Set a metronome - no, better yet, go here:
http://www.webmetronome.com/. Set the metronome to 120 (2 beats per second) and set the second dial to 6, for one combat turn. You can click on just one - that's one shot every turn - and listen to how long you have between shots to recover from the recoil of a semi-automatic shot. Adjust it to emphasize the first and fourth - that's two shots. Go on, I'll wait.
...
One 'tick' among the 'tocks' every three seconds sure as hell is a lot of time to recover from recoil, ain't it? Even two, you get plenty of time. I can see a competent shooter, someone with a 4 or 5 in the skill, handling
without penalty one semi-automatic or short burst shot per second (accents on 1, 3, and 5),
even under fire. I can see anyone at
all handling one shot per turn with no problem, too, so long as they didn't have an incompetency in the skill. Someone who's
especially competent - like that guy who accurately fires 6 shots from a single-shot weapon (a revolver) in a half-second - to be able to handle more fire, simply because they
know how to handle the recoil, to ride it, to
use it to set up their next shot.
Hm.
I may have to work on this, but if I do, I'm pretty sure my house recoil rulings are going to be a matter of skill, not pure muscle. Muscle
may enter into the equation, especially with autofire weapons, but it isn't going to matter a whit when it comes to SS/SA weapons ...