Last week I picked up my YHM SS Phantom. I mounted this suppressor onto my SBR (10.5" LMT upper on a self-assembled RRA lower):
On Saturday, I managed to conduct a short preliminary test. I started out with two main goals. The first is to determine if there is a shift in POI with this can. I first zeroed the SBR and then set out to shoot 3 rounds at a 50-yard target. As best as I can tell, there was no noticeable shift. Here is a picture of the target and my best mapping:
I did my test over the weekend and so far I'm liking mine. I used a portable Sound Meter. But the numbers don't really tell the whole story because it also records the bullet's sonic boom.
The way I set up the test is I placed the Sound Meter at four different distances record the shots. Here is the layout and readings:
At first I wasn't too impressed with the results. I could not figure out just why the numbers between the suppressed and unsuppressed were so close, especially the farther away. Then I decided to do a sound test at 5 and then 50-yards. I tried to reduce the size of these files but was unsuccessful. So I apologize for the length and the bandwidth they will use up.
5-yard test: http://s176.photobucket.com/albums/w...rdCompare1.flv
50-yard test: http://s176.photobucket.com/albums/w...50-yardPOV.flv
I did not realize it at the time, but the noise reduction it provided was amazing. The next day I let a friend shoot this setup at his neighbor's farm. I had absolutely no problem standing about 6-feet from the shooter at 7 o'clock and at 3 o'clock without any hearing protection!!
This can is very solidly built and easily mounts onto the provided FH. I am planning on purchasing another QD FH for my 16-inch CAR-15. This is one of the downsides, additional QD FHs cost $75 each!! I also noticed that the suppressor 'wiggled' when mounted. Basically, it rotated a tiny bit because the pawl that locks it in place also did so.
The other downside is the weight; maybe I'm a wimp but the can does have some heft to it. At 1.5-pounds you can really feel that weight on the end of your rifle. This is something I will need to get used to.
I also tested this with a .22 conversion kit and was able to shoot without any hearing protection indoors. The sound of the bullet hitting the bullet trap was louder than the gunshot itself. This was also true when we were shooting at a creek that was over 100-yards away. The splash was a lot louder!!
As someone who has never shot anything larger than a 9mm with a suppressor, I was surprised by just how much gas bets blown back onto the shooter even with a PRI "Gas Buster" charging handle.
Again, this is just my initial analysis. I plan doing some more testing and analysis. The next one will be a more extensive test of any POI shifts