tube length
Hi guys, I have found that a 1″ aluminum tube will fit nicely within the frame of my condor, this is without the end cap and that the set screw will snug up and hold it.
I am going to vent the front barrel bushing by drilling around the circumference, as well I am going to vent through the bottom of the frame between the front and back barrel bushings.
I plan to locate the tube so that it butts up against the front bushing and then securing it with the set screw on the bottom of the frame.
I have a 12″ .22 barrel and therefore the muzzle is 6″ shorter than the frame.
Can someone with knowledge advise me what length of the aluminum tube should be extending past the end of the frame to provide good suppression using the spring and washer method.
I haven’t been able to find a metal end cap for the aluminum tube but am going to use a 1″ rubber end for a cane which I will drill an exit hole. I believe this should work as there is sufficient friction to withhold the ‘internals’
Let me know what you think, if anyone has done this as well as the total tube length I should try working with.
Looking forward to your responses.
Thanx in advance
Tb
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LDP, appreciate the input and suggestion. My plan is to start low and work up on the velocity end of things. My luck if I were to start high I’d end up sending everything down range at warp 3!!! The biggest problem I’m having is finding a suitable ‘end cap’. As I’m not a machinist, just some hand tools but the search continues. We don’t have Ace hardware so I can’t enjoy shopping there 😥
Tb
I dont think friction alone will hold youre end cap on. I would start with 1″ space between the washers and put 6 of them in and see what the result is. I have made mono core style baffles and when i used 7 chambers that were approximately 3/4″ – 1″ in size it was very quiet and i mean scary quiet 
Some one with more experience using washers might have a better number and spacing but ultimately you will probably have to do some r&d to get the exact result you are looking for. Dont forget velocity will play a major role in how much suppression you will have with a given size of ldc.
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If you have a decent drill press you could make an end cap out of aluminum and use a set screw to hold it instead of threading it. I am pretty sure someone could make you an end cap if you gave them accurate measurements for the size it needs to be if you have no way of making one. Even at low power i dont see a cap that is only secured by friction staying in place so be very careful the first time you squeeze that trigger.