
182 Ballistics: Theory and Design of Guns and Ammunition
There are four basic types of blast deectors (Figure 5.13). The bafe type is identical to
a bafed muzzle brake with the gases vented to the sides of the piece. The perforated type,
sometimes called a “pepper-pot” brake, has multiple side ports in a tubular section (none
of the ports venting straight down). The T-type is the same as a single-bafe muzzle brake
and lastly, the ducted type. This latter device has a complicated array of ducting to divert
the ow back and upward near the mounting trunnions. It diverts the blast load so that it
is carried by the trunnions. Unfortunately, a ...