I'm not much on the videos but I can post pictures. Here is the one I'm working on now, it's .30 caliber so I can use it on any of my rifles.
This one is 1.625" OD, titanium (.070" wall thickness). I make the muzzle attachment out of titanium as well, ID threaded 5/8x24 and thread the OD 20tpi but leave an edge in the center for each tube to but against. Around the inside I drill 8 9/32" holes to allow the gas to go from the blast chamber to the rear section.
I've just been making the baffles out of freeze plugs (P/N 555-026) and finishing them on the lathe, I've had great results so I have no reason to spend the time machining them out of bar stock. This one has 8 baffles and a 1.25" titanium spacer in the blast chamber, which vents into the rear section.
The rear tube is just empty, and the rear cap is cut slightly larger the barrel OD. I use a piece of heat shrink to interface between the barrel and the rear cap. I make the caps out of 6061 aluminum. I have to make a rear cap for each rifle as the barrels aren't the same OD. I engrave the forward end cap by hand with my trust info etc.
The surface finishes aren't perfect as I'm using a chinese lathe I bought for $300 on craigslist (along with about $300 of tooling from littlemachineshop.com), but my top priority is concentricity which I am very careful to maintain. I reamed out the spindle bore to 13/16" so I can thread barrels in it too.
Total material cost for this setup was less than $100, plus $200 for my form 1 tax stamp. I had to buy the titanium bar stock in 12" sections so I've got plenty left over for other projects.
My next step on this one is testing, then if I'm satisfied with it I'll cerakote it and call it a day.
This is my grendel, it's a 24" SS Alexander Arms barrel that I cut to 22" and threaded 5/8x24:
![[Image: 20161031_113420.jpg]](https://s17.postimg.org/fs61efenj/20161031_113420.jpg)
And here's my remington 700 in 30-06, I threaded the barrel in my mini lathe. When swapping the can between the two, I just have to change out the rear cap. I'll probably end up cerakoting it too because the bluing isn't very corrosion resistant.
![[Image: 20161031_174516.jpg]](https://s12.postimg.org/sxdbjfbu5/20161031_174516.jpg)
Length is 5" in front of the muzzle and 6" behind for a total of 11".
This one is 1.625" OD, titanium (.070" wall thickness). I make the muzzle attachment out of titanium as well, ID threaded 5/8x24 and thread the OD 20tpi but leave an edge in the center for each tube to but against. Around the inside I drill 8 9/32" holes to allow the gas to go from the blast chamber to the rear section.
I've just been making the baffles out of freeze plugs (P/N 555-026) and finishing them on the lathe, I've had great results so I have no reason to spend the time machining them out of bar stock. This one has 8 baffles and a 1.25" titanium spacer in the blast chamber, which vents into the rear section.
The rear tube is just empty, and the rear cap is cut slightly larger the barrel OD. I use a piece of heat shrink to interface between the barrel and the rear cap. I make the caps out of 6061 aluminum. I have to make a rear cap for each rifle as the barrels aren't the same OD. I engrave the forward end cap by hand with my trust info etc.
The surface finishes aren't perfect as I'm using a chinese lathe I bought for $300 on craigslist (along with about $300 of tooling from littlemachineshop.com), but my top priority is concentricity which I am very careful to maintain. I reamed out the spindle bore to 13/16" so I can thread barrels in it too.
Total material cost for this setup was less than $100, plus $200 for my form 1 tax stamp. I had to buy the titanium bar stock in 12" sections so I've got plenty left over for other projects.
My next step on this one is testing, then if I'm satisfied with it I'll cerakote it and call it a day.
This is my grendel, it's a 24" SS Alexander Arms barrel that I cut to 22" and threaded 5/8x24:
And here's my remington 700 in 30-06, I threaded the barrel in my mini lathe. When swapping the can between the two, I just have to change out the rear cap. I'll probably end up cerakoting it too because the bluing isn't very corrosion resistant.
Length is 5" in front of the muzzle and 6" behind for a total of 11".