The guy who has the 338whisper uses 7br brass.....i believe 11gr powder...
Max fps is around 1100......and stays subsonic....but the kenetic energy is enough to kill critters at distance........target shooting is really fun.....
bang................................................................................................ting...
Max fps is around 1100......and stays subsonic....but the kenetic energy is enough to kill critters at distance........target shooting is really fun.....
bang................................................................................................ting...
