The Down Range Forum
Member Section => NFA Items => Topic started by: tombogan03884 on May 15, 2012, 10:11:02 AM
-
In MB's Blog post for today,
http://michaelbane.blogspot.com/2012/05/trs-silencer.html
There is a photo of a suppressed Winchester 1894.
I notice that the suppressor is set off center to avoid blocking the sights.
I thought they needed to be centered for proper performance ?
If not, then why not do that with all of them ?
-
Probably because if the suppressor is not lined up correctly the shot is thrown off. Dad's uncle had one like that and if it was not set correctly the shot would be off. This was on a 22 with a non-threaded barrel. Uncle used it for squirrel hunting with shorts and all you could hear from about 10 ft. away was the firing pin snapping home.
Pecos
-
The "bore" of the suppressor doesn't have be run along the center line of the "can" but it has to be in line with the bore of the firearm to insure accuracy.
Having the suppressor "bore" in the center of the can gives optimal gas dispersion equally in all directions. If the "bore is offset, it will make the sights usable, but complicate the internal design to provide the needed volume of dispersion with the top side being limited.
That is my guess any way ;D ;D ;D
-
Probably because if the suppressor is not lined up correctly the shot is thrown off. Dad's uncle had one like that and if it was not set correctly the shot would be off. This was on a 22 with a non-threaded barrel. Uncle used it for squirrel hunting with shorts and all you could hear from about 10 ft. away was the firing pin snapping home.
Pecos
Reading Solus's post made me realize My first post was badly worded.
The bore of the suppressor was significantly off the centerline of the can itself while still being parallel to the long axis of the can .
-
Reading Solus's post made me realize My first post was badly worded.
The bore of the suppressor was significantly off the centerline of the can itself while still being parallel to the long axis of the can .
Spoken like a true machinest!
AAC had an "oblong" can under development for pistol calibers. I don't know if it will ever go anywhere with the change in management.....
-
Spoken like a true machinest!
AAC had an "oblong" can under development for pistol calibers. I don't know if it will ever go anywhere with the change in management.....
lol lucky you did not say owner operator (ops I did hehe :P )
I would of always thought as long as the bore is inline the rest of the can should not matter...
-
lol lucky you did not say owner operator (ops I did hehe :P )
I would of always thought as long as the bore is inline the rest of the can should not matter...
There could be some concerns. About 90 degrees of gas dispersion area above the bore doesn't exist any more. That is 25%. The design will need to deal with that uneven venting.
Manufacturing concers arise as the baffles are no longer symmetric and alignment will be more critical during assembly and welding.
Also, this might introduce a heat problem at the top of the can...but I don't know enough to know if it would be any worse than the top of the barrel before the can or if it would affect anything. I guess it could be cooler on top with no hot gases being directed that way....but then the other areas might need to be modified to deal with the increased heat load.
The first two shouldn't affect performance or accuracy, assuming the problems they cause are able to be compensated 100%. They will increase the cost of the product though.
-
There could be some concerns. About 90 degrees of gas dispersion area above the bore doesn't exist any more. That is 25%. The design will need to deal with that uneven venting.
Ever seen the guts of a monolithic suppressor. Gasses take all kinds of paths out of the bore.
Manufacturing concerns arise as the baffles are no longer symmetric and alignment will be more critical during assembly and welding.
It depends on the method of manufacturing. Like the monolith mentioned above it is easy to EDM a block to fit inside a tube with non-symmetrical cuts and quicker to manufacture/assemble than multiple components stacked in a conventional suppressor.
Also, this might introduce a heat problem at the top of the can...but I don't know enough to know if it would be any worse than the top of the barrel before the can or if it would affect anything. I guess it could be cooler on top with no hot gases being directed that way....but then the other areas might need to be modified to deal with the increased heat load.
The first two shouldn't affect performance or accuracy, assuming the problems they cause are able to be compensated 100%. They will increase the cost of the product though.
Again it depends on methods of manufacturing (CNC Lathe, EDM Wire, CNC Mill or, my favorite, manually machines), economy of scale (not much to gain here anymore when Lean Manufacturing principles are properly applied) and materials used (Ti vs. 316 SS vs 7071 AL).
I am intrigued in the design differences and I am approaching it from a machinist/manufacturing aspect but I may have to model this up in Solid Works and run the physical simulation on it to see if what we think matches what the computer thinks.
-
Ever seen the guts of a monolithic suppressor. Gasses take all kinds of paths out of the bore.
It depends on the method of manufacturing. Like the monolith mentioned above it is easy to EDM a block to fit inside a tube with non-symmetrical cuts and quicker to manufacture/assemble than multiple components stacked in a conventional suppressor.
Again it depends on methods of manufacturing (CNC Lathe, EDM Wire, CNC Mill or, my favorite, manually machines), economy of scale (not much to gain here anymore when Lean Manufacturing principles are properly applied) and materials used (Ti vs. 316 SS vs 7071 AL).
I am intrigued in the design differences and I am approaching it from a machinist/manufacturing aspect but I may have to model this up in Solid Works and run the physical simulation on it to see if what we think matches what the computer thinks.
It would be very interesting to some of us to see what you get for results.
-
It would be very interesting to some of us to see what you get for results.
Traveling all next week with my Mechanical engineer and a service guy, I'll see if one of them has SolidWorks on their laptop. Anyone have a link handy to a pic of the internals by chance?
-
This was all I could find.
http://www.google.com/patents?vid=916885
-
This was all I could find.
http://www.google.com/patents?vid=916885
Oh its just Maxim's patent for a silent firearm... WHAT!?!? :o Too cool!
I've seen some on SilencerTalk.com with offset bores, in fact my buddy's 9mm silencer is offset and I shot it back around Christmas. I may offer to clean it for him, oh crap I can't NFA rules! DOH!
-
I thought it was appropriate since it's a Maxim on TR's Winchester 94 in the OP ;D
-
This was all I could find.
http://www.google.com/patents?vid=916885
Hibam?
-
Hibam?
It's a typo, it's supposed to be Hiram.
But it's not the machinegun Hiram, it's his son.
http://en.wikipedia.org/wiki/Hiram_Percy_Maxim
He was the son of Sir Hiram Stevens Maxim, inventor of the Maxim Machine gun. In addition, he was the nephew of Hudson Maxim, an inventor of explosives and ballistic propellants. He had two sisters, Florence Maxim, who married George Albert Cutter, and Adelaide Maxim, who married Eldon Joubert, Ignace Paderewski's piano tuner.[1] Hiram was a mechanical engineering graduate, class of 1886, of the Massachusetts Institute of Technology (then a two-year course). [