when i do a stock war i use longshot and my strikefire pistol, or crossfire. whatever it is called. (they call it something different when it comes in a pair? wow nerf.) some of my friends use the buzzbee rapidfire western rifle or the buzzbee shotgun. personally i dont really like buzzbee.
Two things can cause the recon to jam (in my experience):
1. Leaving ammo in the clips, allowing it to deform. 2. Trying to reload too fast.
That's about it really.
I've just taken one apart and found a dart jamming the boltsled.
Or, people are trying to load micros and taggers in it instead of streamlines, and are hacked off because the blaster won't function with non-spec'ed darts.
yeah. i forgot some darts in a clip once and the first dart ruined and the second almost as bad. and please, please dont use any darts except streamlines. i hate people who come to my house and just start putting random darts in guns.