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Posted: 4/4/2016 10:53:30 AM EDT
[Last Edit: 4/4/2016 11:06:14 AM EDT by svelectric]
Looking at a SD Ti D sized Tube build.  How far could this tubes diameter be turned down overall, and in-between the threads?  Probably not a ton, but even a little will reduce the weight.  This would be mostly for pistol with occasional 300bo subs/supers (bolt action, not rapid).  The DM 1.375 tube would be OK, but the lead time and cost are limiting factors.  With the D tube I'd get even more volume anyhow.  I have Ti VSR's for the internals.

Edited for clarity (hopefully)
Link Posted: 4/4/2016 10:57:36 AM EDT
What?
Link Posted: 4/4/2016 11:16:48 AM EDT
Link Posted: 4/4/2016 11:22:57 AM EDT
[Last Edit: 4/4/2016 11:27:53 AM EDT by svelectric]
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Originally Posted By BigWaylon:
Not sure on the Ti. I had my Apogee SS tubes turned down between the threads and it was a big weight savings.
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Do you recall how much it was turned down?

My math is poor, but here's what I was thinking.  1.5" overall OD (iirc 1.36" ID).  Turn down to 1.42 inbetween the threads?  Leave's .06 wall thickness.  In some other threads it sounded like that would be OK for SS tubes, not sure on Ti.  Very little full power 300 BO through this one, mostly pistol rounds and subs.
Link Posted: 4/4/2016 12:09:54 PM EDT
[Last Edit: 4/4/2016 12:10:40 PM EDT by c5hardtop]
I've seen some of the earlier Steel ones turned down to .050" between the ends, with Ti and sub and pistol use I would think that is doable.  The 1.375" tube makes more since for pistol use.
Link Posted: 4/4/2016 12:11:34 PM EDT
Link Posted: 4/4/2016 12:26:19 PM EDT
Thank you for the replies.  Sounds like I'm on the right track, but might not want to go down to .06 for the walls.  I would like the 1.375 tube, but the wait is crazy, I have the internals I need now and looking for max flexibility with this can.  Blocking of the sights on a pistol isn't too much of a concern for me right now, I can get suppressor sights if needed.
Link Posted: 4/4/2016 4:35:59 PM EDT
Your wall thickness would be .03'' not .06''. Both sides added together would be .06''
Link Posted: 4/4/2016 4:50:19 PM EDT
Originally Posted By Tfdarchos:
Your wall thickness would be .03'' not .06''. Both sides added together would be .06''
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I told you my math was bad!  OK.  kidding.  I see where I went wrong.  I guess I need a better idea of how far I can go.  If it's only .02" probably not worth the cost of the turn down.
Link Posted: 4/4/2016 6:25:37 PM EDT
[Last Edit: 4/21/2016 8:44:05 PM EDT by BigWaylon]
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Originally Posted By svelectric:

I told you my math was bad!  OK.  kidding.  I see where I went wrong.  I guess I need a better idea of how far I can go.  If it's only .02" probably not worth the cost of the turn down.
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Originally Posted By svelectric:
Originally Posted By Tfdarchos:
Your wall thickness would be .03'' not .06''. Both sides added together would be .06''

I told you my math was bad!  OK.  kidding.  I see where I went wrong.  I guess I need a better idea of how far I can go.  If it's only .02" probably not worth the cost of the turn down.

Just assemble after approval then shoot it. THEN if you feel it's too heavy. Start lifting weights.
I'm saying this based on your lack of math skills. You'll turn it down too far, them blame the mfg for it handgrenading on you.
Link Posted: 4/4/2016 8:52:12 PM EDT
[Last Edit: 4/21/2016 8:43:45 PM EDT by BigWaylon]
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Originally Posted By OverScoped:
What?
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Sorry guys..

I was on my phone and thought I was in the AR-Build it yourself section. Carry on.
Link Posted: 4/21/2016 8:40:34 PM EDT
Turned down for what?







I had to.
Link Posted: 4/22/2016 9:35:51 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By svelectric:


Do you recall how much it was turned down?

My math is poor, but here's what I was thinking.  1.5" overall OD (iirc 1.36" ID).  Turn down to 1.42 inbetween the threads?  Leave's .06 wall thickness.  In some other threads it sounded like that would be OK for SS tubes, not sure on Ti.  Very little full power 300 BO through this one, mostly pistol rounds and subs.
View Quote View All Quotes
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Discussion ForumsJump to Quoted PostQuote History
Originally Posted By svelectric:
Originally Posted By BigWaylon:
Not sure on the Ti. I had my Apogee SS tubes turned down between the threads and it was a big weight savings.


Do you recall how much it was turned down?

My math is poor, but here's what I was thinking.  1.5" overall OD (iirc 1.36" ID).  Turn down to 1.42 inbetween the threads?  Leave's .06 wall thickness.  In some other threads it sounded like that would be OK for SS tubes, not sure on Ti.  Very little full power 300 BO through this one, mostly pistol rounds and subs.


My 1.5" Ti tube is .60" thickness also. It was a DM 1.5" ordered with 1.38" ID.  I'm not sure why you would not want to bore the ID instead, it gives more volume, you can drop in 1 3/8 internals, and no steps.
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