powder selection for suppressor

[AllenM]

I am getting ready to load 9mm 147gr bullets to run through my suppressor but I cant find the powder I want V V N320

Of the powders I do have on hand does anybody have any insight as to which ones would be the quietest?

Here is what I have:

Titgroup
AA #7
AA #9
AA #5
Winchester 231
Solo 1000
Power pistol

Thoughts?

 

[maverick5990]

That Titegroup is very loud. You should give it to me!

 

[trophyhunter]

Who's bullet are you using? That, and the COL are going to really come into play for useable case volume with 147's. For instance, say you used a Hornady 147 FMJ-RN, those are 0.675 / 17.15 mm in length so that leaves you with 6.4 grains of case capacity seated to 1.145 ~ That pretty much rules out #9, can't get enough in the case.

Titegroup will give you the closest performance to VV N320 on your list of powders for a 147 load with plenty of room to spare, followed by Solo 1000 both being right at .1 and .2 lower Max charge weight assuming all other things being equal in the load.

 

[AllenM]

I have a couple different brand bullets right now which I have loaded in the past. I have set OAL to my tightest chamber gun which is a Kimber, just so I know they will function in everything then work up powder charge from there. I shot some solo 1000 loads with 3.6 gr charge which ran fine in my ar and glock.
Sound volume was not bad. I can live with that if I have to but I am going to load up some tightgroup next and give them a try but I am not a big fan of tightgroup in the summer due to the heat it generates.

 

[partyboy6686]

Allen I got some 700-X, Titewad, and Longshot. If you wanna try any of those powders out on some loads let me know.

 

[AllenM]

Allen I got some 700-X, Titewad, and Longshot. If you wanna try any of those powders out on some loads let me know.

Thanks, I'll let you know

 

[bigcraig]

Allen, look no further than Tightgroup, if you have it in good quantity.

That said, with the pressure of a loaded subsonic round is, noise created by a certain powder is virtually impossible to distinguish to the ear.

147gr FMJ
COL=1.69
Tightgroup----3.2gr--3.6gr (Find what your gun likes best.) Even the 3.6gr load shows a sub 930 fps velocity.

 

[AllenM]

Allen, look no further than Tightgroup, if you have it in good quantity.

That said, with the pressure of a loaded subsonic round is, noise created by a certain powder is virtually impossible to distinguish to the ear.

147gr FMJ
COL=1.69
Tightgroup----3.2gr--3.6gr (Find what your gun likes best.) Even the 3.6gr load shows a sub 930 fps velocity.

just so happens I loaded some sample rounds with 3.5 Titegroup last night. gonna try them out today.

I have to disagree though that its hard to tell from some powders. be fore I had the suppressor my 16" 9mm AR liked longshot loads best for accuracy but even though those loads are subsonic they are significantly louder than the solo 1000 loads I was fooling with.
Regardless unless you can buy VV powders (which I can't find) Titegroup does seem to top the list from what I read.

Thanks

 

[AllenM]

Ok did a comparison of 3.8 gr solo vs 3.5 grs of titegroup. Took my wife along just for a second opinion. Solo was very noticeably quieter and accuracy was good. I will use this load until I can find Some VV powder to play with.

I will have to chrono it next time

 

[indymike]

I've done pretty extensive experimenting making subsonics with W231, Titegroup and VV N340. I like to run the bullets to about 900 to 950fps. I've found over the last year or two that 3.4gr of TG and 3.6gr of W231 sound almost identical and get about the same velocity. But they are not as quiet as VV N340. VV N340 is but definitely more quiet and burns a lot cleaner. It costs a lot more but totally worth it to me.

On another note, I've read in many forms that TG burns much hotter than those other two and in my experience, it does heat the can up much, much faster. VV N330 is supposed to burn the best and from what I've read, was specifically designed for suppressors and to run cooler. But that powder is kind of like a unicorn. It was really hard to find in normal times and pretty much fell off the earth during the current shortage.

 

[AllenM]

I've done pretty extensive experimenting making subsonics with W231, Titegroup and VV N340. I like to run the bullets to about 900 to 950fps. I've found over the last year or two that 3.4gr of TG and 3.6gr of W231 sound almost identical and get about the same velocity. But they are not as quiet as VV N340. VV N340 is but definitely more quiet and burns a lot cleaner. It costs a lot more but totally worth it to me.

On another note, I've read in many forms that TG burns much hotter than those other two and in my experience, it does heat the can up much, much faster. VV N330 is supposed to burn the best and from what I've read, was specifically designed for suppressors and to run cooler. But that powder is kind of like a unicorn. It was really hard to find in normal times and pretty much fell off the earth during the current shortage.

If I could find the VV powder I would buy some. I am just glad i have quite a bit of the Solo 1000 it is a lot quieter than TG So Imagine it would be ranking close to the VV powder

 

[8th SPS USAF]

I use 3.0 grns TG with 125/147 Works great in my suppressor .