some suppressor questions

[Precision]

I am not in a place to be able to responsibly afford this, but I am saving my pennies.

Right now I am looking at two suppressors made by the same company and trying to figure out the true differences as well as what those differences mean to me.

My current usage platforms:
standard 16" AR
White Oaks Armament 24" bull barrel AR
.308 bolt gun

The two suppressors are:

http://tinyurl.com/YHM-30-Cal-Ultra-Light-Tacti

and

http://tinyurl.com/YHM-Titanium-7-62mm-Phantom-QD

I realize the first one is not rated for 300 win mag and has a low use rating for full auto.
I wonder about the 39db sound saving for the first one. It seems like most all suppressors are in the 29-33 range and those extra 6db is pretty big.

lastly, how much suppression loss should I expect in using this can on a 5.56 gun. Meaning if my .308 bolt gun gets 35db of suppression, should I expect 25db, 30db, 35 db on my 5.56 gun?

[Aesop]

I defer to those with hard data from practical experience, but I suspect you're not going to get a helluva lot of suppression shooting little bullets (.223) through a big hole(.308).
Some, certainly, from the outward expanding gasses, but that gapping non-obturated opening on the front side is going to make the forward-progressing gasses let roar with near full force, being the path of least resistance.

It'll probably cut down on perceived sound from your position at the trigger, but it may well serve to focus the sound much more precisely from anywhere downrange. Which is rather opposite of the point, I thought, whether you're on a serious anti-social mission, or just trying to spare the neighbors the harsh sounds of varmints or tin cans expiring.

[JAG2955]

While sound suppression is obviously your goal, I suggest that it not be the only criteria in which you evaluate your suppressor purchases. I've got 3 cans right now, and my 4th should be done any day now. I'd recommend that you look closely at weight, durability/longevity, and above all, CUSTOMER SERVICE/WARRANTY.

Sound suppression is highly desirable for your bolt gun and precision AR. For your standard, weight is far more important. A 5.56 can would be easier to sling around on the end of a 16" barrel. Of course, I say that, but to me, the advantages of a 7.62 can outweighed the benefits, and that's what I bought. It turns a lithe, maneuverable 14.5" lightweight build into a front-heavy musket-length pig. (Of course, when my SDN-6 is on my short-barrel .300blk pistol, it makes it all worth it.)

Durability for me is a strong selling point. Everything has a finite service life, and the longer the lifespan is, the lower your cost/shot will be. Your kids/grandkids will thank you if you pay more for a more durable can.

Now, customer service and warranty: No matter what, you'll be waiting 9+ months for a new stamp, even if your money is returned due to a defective purchase. Your $200 will likely never be returned. A great warranty is as good as buying insurance. I recall some company shortening and customizing a guy's can after a terrible endcap strike. They saved the tube ($200), cut off the damaged section, and re-welded a new endcap onto it.

I would recommend the larger 7.62 bore over one in 5.56, because then you also have the option of .300blk, which is as close to movie-quiet as you'll get in a centerfire cartridge.

[JAG2955]

This should help you spend your money.