First Form 1 Design

[remidoggoingdark]

Thank you sir!

[Dunkman]

Does anyone know if this can could withstand 6.5 Grendel out of a 12.5'' barrel? Thanks!

[Dunkman]

Just asking again if anyone has an idea if this can will be okay on a 12.5'' 6.5 Grendel? Thanks!

[blkhawk12]

Just asking again if anyone has an idea if this can will be okay on a 12.5'' 6.5 Grendel? Thanks!

I can do the math and get back with you.

What is the ledge depth on the ASR Advantage tubes? I dont find a reference on their website.

imgur.com/a/3OuoFOr

[blkhawk12]

Just asking again if anyone has an idea if this can will be okay on a 12.5'' 6.5 Grendel? Thanks!

here you go: https://imgur.com/a/x0tEW32

[blkhawk12]

Here is a good research paper on barrel length and pressure. 5.56 chamber pressures (58 ksi) are higher than 6.5 Grendel (52 ksi). Pressure drops dramatically after the bullet exists the barrel. Slide 4 shows suppressor pressure in the blast chamber.

https://ndiastorage.blob.core.usgovclou ... pDater.pdf

[T-Rex]

Just asking again if anyone has an idea if this can will be okay on a 12.5'' 6.5 Grendel? Thanks!

here you go: https://imgur.com/a/x0tEW32

You're designing for a sealed vessel, which a silencer should never be. If that were the case, a SF of 2.8 wouldn't suffice.
If you care to search, there are members here who've made ridiculously thin-walled silencers, from materials that weren't the strongest, on centerfire rifles. It's more a factor of elevated heat and where strength is on that curve. If you're planning to use the suppressor on a slow-fire rifle, even Aluminum will be applicable. If FA fire and mag dumps are in store, build for the worst case scenario.

[blkhawk12]

You're designing for a sealed vessel, which a silencer should never be. If that were the case, a SF of 2.8 wouldn't suffice.
If you care to search, there are members here who've made ridiculously thin-walled silencers, from materials that weren't the strongest, on centerfire rifles. It's more a factor of elevated heat and where strength is on that curve. If you're planning to use the suppressor on a slow-fire rifle, even Aluminum will be applicable. If FA fire and mag dumps are in store, build for the worst case scenario.

Isn't designing for a sealed vessel a more conservative approach?

This study (link above) was done with a higher pressure 5.56 at 1in barrel length increments. They measure the pressure in the blast chamber on a 300 series steel silencer. I appreciate the engineer toolbox link in bio! Not sure where I would be in life without it.

https://imgur.com/a/WhhcqER

[d_lish]

Thanks! I can confirm that making the last spacer 0.50'', instead of 0.375'', is perfect. Everything tightens up snug and the lands on the end cap are flush with the end of the tube.

Any range reports yet?

I'm interested to hear how the DHC worked out, if you did end up going with it.

Where did you get those cups BTW? Things are sweet.

[Dunkman]

Sorry, been MIA for a little bit! This is my first silencer so I can't compare it to others, but I am very pleased with it's performance. I will try to take a video of it soon, and I know that won't give accurate information but I don't have a meter. 6.5G thru it was really sweet! I plan to hunt with it, only time I don't wear ear pro (I know it's bad) but for one shot silenced it was pleasant. 11.5'' 5.56 was nice too!

Cups were from Aegis Products, but I think they went down.

[Dunkman]

Didn't go without ear pro on the 5.56 but the noise/concussion reduction was very noticeable.

[Dunkman]

What is the best way to upload a video here? Shot 300 blk subs thru my silencer and I want to share it with you guys.

[strobes]

I'd upload to YouTube and publish the link here.

[Dunkman]

Idk if I did this right but here it is https://www.youtube.com/watch?v=-4sAkqM ... e=youtu.be

[alordnapa]

Nice!