  Little has been published regarding whether and how sound suppressors impact
bullet flight, including velocity, bullet yaw, and drag. These parameters were
compared for four different bullets fired from a .300 Winchester Magnum under
four different muzzle conditions (no device and three different suppressors).
While effects were not observed in all cases, results indicate that sound
suppressors can have the effect of reducing bullet yaw and drag significantly,
and can also have small effects on muzzle velocity. Results further suggest
that bullets with a propensity to yaw demonstrate significant reductions in yaw
and drag when shot through a two stage symmetric suppressor versus unsuppressed
or with a conventional mouse-hole/K-baffle design.
