Welcome 1)something something expanding gasses, open chamber something something temp drop...yeah someone with more knowledge than me can probably explain it better 2) No... there are to many variables depending on baffle design , suppressor volume , barrel length of the host , amount of gas (depend...

I mount my end mills with the above 2MT holder in lathe spindle. DO NOT hold end mill with 3 or 4 jaw chuck ... at best it will slip, at worse ...gasp. :) ... Fun 'beating the system'. Best. I agree however my lathe has a 6mt spindle So I use an er40 collet chuck I have also used a collet block hel...

it depends on how much muchness you want but

a 500w spindle can be had for less than $100
a 1.5kw will run around $300

Creative work holding

hold the work on the cross slide and end mill in the chuck and just like that its a horizontal mill

ETA

or you can adopt an inexpensive CNC spindle to use as live tooling

or even use it to broach splines

I bought some to use as space material for my 9mm can
Its holding up fine and for much less than anywhere else I could find...
There is also a guy/company selling drop or off cuts from Israel that is gtg

I'm sure he ment hole depth not thread depth

After much thought I did something completely different I brought the Southbend from the shop it will now live in my garage at home It is with a heavy heart I also said good by to my Clausing In the last 6 months I have spent more tim working on it than using it or so it seems plus for what I use it...

Your Rahn sounds like my Clausing We've been in the same shop since 1979 ...7 years before i was even thought of, we just really dont have the room The deal that introduced the new lathe also added a small mill (Grizzly G0463) another blast cabinet (24x48) and another air compressor (60g 5hp vertica...

Ive come upon a 3rd lathe and only have room for 2 the question is which ones to keep and which to sell The 1964 Clausing 14X40 VFD retrofitted is going to stay the two I've got to choose between 1964-65 South Bend 10K (12 speed,flat belt, rear drive, quick change gear box, 36" bed and a partia...

If I were to build it like that I'd build it like the .30 can I built with the bar stock rear end, one piece rear cap and first 4" of tube then threaded for the 2" O.D. main body

7068-T6511 is very strong, like 103,000 psi tensile strength strong, as in stronger than unhardened 4130

What I was getting at , "amateurs" usually arn't conserned with speed as they are cost of tooling
with an annular cutter you get exactly one groove width and profile
a ground tool however much slower it may be is more flexable

annular cutters work very well however split round hss or carbide blanks can be ground in just a few seconds and are many times more versatile (ie more diameters from the same tool ) edit : to grind tool simply grind off half of the split portion so you are left with a 1/4 pie shaped piece (with jus...

A Mostly Ti two piece tube .30 can by partsguy22

viewtopic.php?f=10&t=138779

careful application of a dremel or die grinder can work as well

for that matter a round file can get the job done

I think for my level of ability single thread is the way to go. Something maybe 16 to 20 threads per inch. On the drawing posted above it shows 375 as the length of the threaded section is that enough? If you can cut single point threads you can do acme and with a couple minuets of practice multi s...

Waterjet ?
If the round profile cant be delt with maybe water jet it as a square piece of barstock the turn to diameter...as a plus ot would be easy to make a can an offset bore ala the SiCo Osprey or DeLisle.

Of those not the 316 its by far the softest and I have no experience with the other two but the data sheet on 422 looks promising
Any reason you are ruling out 17-4PH ?

I've had no luck with ultrasonic for cleaning baffles I either run them thru my pin tumbler or bead blast them

I like it. How's back-pressure with the short bbl? This gun has an adjustable gas-block and the gas isn't noticeable in part to the huge blast chamber 2nd pick in OP. What is the part in middle row all the way to the left? Tool? its... a... erm... blast chamber spacer?... baffle?..divider yeah that...

A few more pics http://i446.photobucket.com/albums/qq189/partsguy22/20161201_141953%201_zps9iwpg5qj.jpg http://i446.photobucket.com/albums/qq189/partsguy22/Mobile%20Uploads/20171113_195514_zpsmslkcec0.jpg http://i446.photobucket.com/albums/qq189/partsguy22/Mobile%20Uploads/20171113_195801_zpsrstszva...

 Thanks to yall for the input Its mostly made from pieces of scrap from around the shop All Ti with the exception of the blast baffle 6.5" long 1.625"od at the rear .070" wall 1.5" in the front .050" wall 7 Ti 60* cones .050" wall  1 718 inconel blast baffle .080 wall S...

I thought of that but I was thinking of using some .020" wall Ti tubing I've got in the scrap pile for the tube But if I'm going to use a steel core it I can use a different tube material since the weight isn't an issue any more My original intention was a ridiculously light .22 can that would ...

I originally was going to make the core ~.75" longer than the tube the first ~.25" will be the same O.D. as the tube as well as bored and threaded internally for 1/2-28 the next 4.5" the o.d. of the core will be ~.008? smaller than the I.D. of the tube the last ~.5 will be threaded 5/...

No clam shells just a little extra clearance like .010" core to tube