Thread: Eccentric over barrel rifle suppressors - anyone know?

Originally Posted by Cordite

Yes, prob with long counterbore is keeping it concentric with the bore, or the crown will not be at 90 degrees to the bore either. I think main thing is to counterbore to somewhere where there is good rifling (that is why this rifle is getting chopped), less important to have a beautiful looking crown. Some dude out there did experiments with simply hacksawing a new hunting rifle one inch at a time and shooting the rough end with only obvious burrs removed, no effect detected on accuracy. Anyway, if you use a drill with more of an angle on the cutting edges it's self centering.

I have an alternative idea taken from overbarrel silencers, where a barrel protector sleeve is often added. You can extend that sleeve forward of the muzzle right to/through the front of the silencer and perforate it to your heart's content. A small barrel counterbore of 2 inches can still be done, with side venting ports, and the sleeve can be perforated over those ports. Baffles can be welded to the sleeve if desired.

Both solutions seek to address @gundoc's stated/hated no. 1 problem with eccentric suppressors - alignment.

Attachment 100111

Mine drilled pretty straight with a plain old jobber drill, its probably easier to build than the drawing above

Originally Posted by Chilli_Dog

Mine drilled pretty straight with a plain old jobber drill, its probably easier to build than the drawing above

Thanks, just revisited your .410 de lisle thread and saw your long 10mm drill construction.

Yes, think you're right about avoiding the complication of the barrel sleeve. If I index the front and back caps to the outer sleeve I may be able to hold it all together simply with a thread at the end of the barrel. Some de Lisles have a short bit of barrel sticking out front of the silencer and that could be the treaded bit holding a screw-on retaining cap. Sleeve and baffles can be added at will later but the design will work to a degree without such.