Opinions on suppressors for 10mm?

[black_hog_down]

It looks like we may get suppressors soon without the $200 tax and year wait. I am researching 10mm suppressors so I can try to beat the rush.
I have both a P220 and a 10mm AR15. I am looking at both 45 & 40 caliber cans.
Any recommendations? I would love to hear from personal experience but if there is a make/model that is considered to be the best any information is appreciated.
Thanks.

[sqlbullet]

Keep in mind that soon here is being applied to a political process.  And that the legislation, while out of committee in the house, is not yet scheduled for vote.  And after the house votes, it has to go to committee in the senate, where it will have fewer supporters.

If you want a suppressor in any time a normal human considers "soon" you might wanna just pay your tax fee and apply.  If the legislation passes before you stamp clears, you will get your tax fee back.

[mbogo]

The following are rated for 10mm auto:
Bowers Vers 45
Rugged Obsidian 45
Liberty Cosmic
Dead Air Ghost-M
Griffin Revolution 45
GemTech GM-45

mbogo

[sqlbullet]

The LIberty Cosmic is rated 10mm mag!

[Keiichi]

I'd like to put a suppressor on my MechTech, but would prefer it to be an over-the-barrel style so as not to add too much length to the rifle. I'm cool with adding 4-5 inches, but would prefer not to have to add the full 8-10 inches of a regular suppressor...

Is anyone aware of an otb 10mm-compatible suppressor that would fit over some/all of the 5 inches of exposed barrel on the MechTech?

[Schrambo]

So my Bowers 458 works??  I love a dual purpose suppressor...  Although it's bitch to hang off my G29... 

[Texashogman]

after Las Vegas this morning/last night--- I don't see any positive process with taking suppressors off the NFA list---I can see even more scrutiny and regulations coming down the pipe if anything with NFA items

[Keiichi]

If the reports are true - that the shooter modified his rifles to be automatic - , then it is really only evidence that gun control laws a-la the NFA can't possibly achieve their stated purpose when an individual is intent on causing harm.

Responsibility for the deaths and injuries of those victims rests solely with the individual who perpetrated the attack.

What is necessary following a tragedy like this is a rational, level-headed response from the firearm community. Truth and facts, rather than fear and propaganda, should rule discussions. I believe that it is our responsibility, as law-abiding firearm owners and enthusiasts, to be vocal in countering the falsehoods being promulgated by those who wish to take political advantage of this tragedy.

That being said, this thread isn't really an appropriate forum for such a discussion... Held here, it would be a case of preaching to the choir.

[black_hog_down]

after Las Vegas this morning/last night--- I don't see any positive process with taking suppressors off the NFA list---I can see even more scrutiny and regulations coming down the pipe if anything with NFA items

Agreed. Not gonna happen now.

[gandog56]

What is the speed of sound at sea level? Seems like I would have to run a 10mm down to .40 cal short and weak velocities to make it worth suppressing.

[Texashogman]

Try a suppressor with standard (super sonic) ammo some time....youd be pleasantly supprised...yes it's still loud, but it gets close to hearing safe.
Subsonic through a suppressor is stupid quiet, but if you are shooting subsonic then large caliber heavy bullets are superior since you are limited by your speed (usually around 1000-1050fps)

[sqlbullet]

Yeah...Suppressors do a lot of good no matter the velocity.  In addition to sound mitigation they can improve accuracy.

You don't think the military loads 338 lapua to subsonic levels, but they still put big cans on sniper rifle.s

[Superzuki]

What is the speed of sound at sea level? Seems like I would have to run a 10mm down to .40 cal short and weak velocities to make it worth suppressing.

1180 fps. 

[sqlbullet]

What is the speed of sound at sea level? Seems like I would have to run a 10mm down to .40 cal short and weak velocities to make it worth suppressing.

1180 fps. 

ACtually depends on a variety of factors including temperature and humidity. 

Also, in the context of an object exceeding the speed of sound relative to the surrounding air it gots worse still.  As the object approaches the speed of sound relative to the surrounding air, not all the surrounding air is passed at the same speed.  There will be pockets where  sonic wave does form, and others where it doesn't.  The severity of this discrepancy depend on the shape of the object.

As a result, there are NASA defined speed ranges relative to the speed of sound for local conditions: 
    subsonic (<890 fps)
    transonic (890-1339 fps)
    supersonic (1339-5582 fps)

In addition, there are defined ranges for hypersonic, high-hypersonic and re-entry speeds.  As they are above 5582 fps, they aren't relevant to shooting.

NASA's ranges are defined for general flying machines which have complex shapes and often don't make any effort to conform to the Whitcomb Area Rule which will minimize the size of the transonic zone.  Bullets, OTOH, mostly conform to that rule naturally, and as a result the transonic speed range is much smaller for most bullets.

For our purposes, 1000 fps and below will be subsonic in all but the most extreme situations, and 1200 fps will be above.  High BC BTHP bullets will shrink this window to just tens of feet per second.

This is most important when developing a subsonic load, or when using load data developed by another person.  What is subsonic for me in the high, dry rockies my not be for someone in sea level, humid Florida.

[Texashogman]

for 308win, I have subsonic loads that clock up to 1100fps at 7000 msl here in dry colorado, but I try to keep them at 1050 or below to make sure I don't get the "crack"--I have never loaded subsonic pistol rounds other than the normal 230 grain  45acp loads

other thing to consider with subsonic loads is IF you intend to hunt with them you either need a long heavy rifle bullet that "flip-flops" on impact, or a short low-speed expandable bullet , otherwise you just punch a caliber sized hole and don't cause much trauma --- hunting distance is generally limited to 100Y or less with anything subsonic

for pistol, heavy soft cast lead bullets, or heavy soft HP bullets seem to work the best ---- for rifle I use long heavy flat base, round nose bullets so they tumble--BC will not really matter when it comes to sub sonic ammo

the actual sound you hear can vary quite a bit depending on lots of factors, from subsonic 22lr ammo (1050fps) through a dedicated 22lr can, the noise is similar to an air rifle-- but believe it or not, my subsonic 220 grain 308 win loads are even more quite than my subsonic 22LR loads -- the suppressor can make a difference but sometimes its the speed that the powder burns at, my 308 loads use a small amount of very fast shot-shell powder and are stupid quiet because all of the powder is completely burnt by the time the bullet exits--- heavier bullets usually take more powder to push them than lighter bullets when reloading--always use mag primers when loading subsonic ammo to make sure you ignite all of the powder since there is very little of it in the case---and only certain powders can be used as some can not be safely reduced due to pressure spikes