Extended Nose K-Baffle

[mcrump]

Has anyone tried an extended nose k-baffle? Seems like there might be a greater disruption of gas flow, especially if the baffles were rotated 90 degrees from each other. Opinions?




Has anyone tried an extended nose k-baffle? Seems like there might be a greater disruption of gas flow, especially if the baffles were rotated 90 degrees from each other. Opinions?

[quietoldfart]

Yes, I did try that, though not quite as extended as your drawing illustrates. I tried about 0.25" of extra 'nose' in a set of short K baffles for a .22lr suppressor. It may have been slightly louder than with the more normal nose, but my metering showed it to be quite close and my ears couldn't decide. Not as significant a difference as when I tried cutting off the standard nose your first drawing shows so as to leave about a 2mm flat around the entry to the bore. That experiment proved significantly louder, worse at suppression. I can not recall which thread it was, but some expert here within the past several months mentioned something regarding keeping the metal along the bore to a minimum. Perhaps it was LavaRed? Or Capt Link? In any case, my memory is telling me that the reasoning went that the less metal adjacent to the projectile, the more opportunity for gases to escape outward, where more metal along the bore tended to preserve forward flow and reduce turbulence. Your extended nose obviously increases the bore-adjacent metal rather considerably. Might be worth taking that into account.

[CMV]

I've made them similar but not nearly as long as what you have pictured. Maybe .075" longer than the edge of the face. I'd worry about accuracy/stabilization issues running through that many long 'tunnels'. Depends on bore diameter I guess.

[57fairlane]

Titsworth's X-caliber baffles are done this way

[a_canadian]

According to the nfatalk charts, the x-caliber rates at 116.88dB with Gemtech silencer subs. Comparable to the Sparrow and a few other high end cans. Doesn't strange me me as being all that long a nose. The extra face detail offers another step to interrupt flow.

[whiterussian1974]

57fairlane: As are jet-z and some euro models.
I would think that a cone would be better than a parallel tube.
I;ve contemplated some w a 'ledge' inside of the cone midway down.