The whole reason you bought a suppressor was to get rid of the noise involved with shooting right? Today we are going to discuss one of the phenomenon that comes with suppressors, and one not everybody is familiar with. First Round pop (FRP) as it is most commonly known, is the additional sound that comes when the first shot of a string is fired from a suppressed firearm. But is it something you need to worry about?
What Causes FRP?
FRP is caused by the presence of unburned oxygen in the suppressor when a shot is fired. The available oxygen inside the suppressor is ignited by the burning gasses and pressure from the muzzle. Subsequent shots are typically less volatile due to the combustion of the oxygen during the first shot. As you continue to fire cartridges, the suppressor body is filled with burnt gas from previous shots, eliminating secondary combustion inside the suppressor. Obviously, if your shots are spaced out enough, the gasses can leave the suppressor and be replaced by fresh air, allowing the cycle to start anew.
What Effects FRP?
FRP varies between suppressor type, cartridges, velocity and other variables. A larger suppressor can house more oxygen, and higher pressure cartridges can cause additional pop volume. You could also experience additional pop from using a suppressor of a larger bore than necessary, as it allows faster ventilation of the suppressor body. The size of the cartridge and the powder charge inside it can also effect the significance of FRP.
Sub-sonic vs. Supersonic
Subsonic shooting is the apex of suppressed shooting, movie-quiet suppression is the goal with sub-sonic suppressed weapons. So as you might imagine, FRP is the adversary of sub-sonic shooters. Some folks even go as far as purging their suppressor with inert gasses prior to shooting to avoid it. Other things such as suppressor wipes can also help keep oxygen from entering the suppressor body and causing FRP.
Supersonic cartridges are already quite noisy, so it is less likely as big a concern for those shooters. Personally I don’t worry too much about it, and for the most part I rarely even notice.
Living with FRP
If your like me, you probably don’t worry much about a few extra decibels when you start a shot string. But if you are one of those who like to play sniper in the back 40 with raccoons or hogs, then you may go to extremes to avoid this pesky pop. Make sure you have the best suppressor for the host you intend to shoot with, some are much better matched to your host than others. The right suppressor can produce less FRP, and if you use some of the other practices to reduce it you can get some very unsuspicious results. There are suppressor gels that you can squirt into the suppressor prior to your first shot that will aid in suppressing FRP. You could also purge your can with inert gas before heading out, and cover the muzzle to keep it inert. You could also do something as simple as adding a touch of water to the inside of your suppressor prior to shooting to help keep down the FRP. Just make sure that whatever practice you use is approved by the suppressor manufacturer, this will help you avoid costly repairs and additional wasteful NFA taxes.
Final Pop
First round pop is simply a biproduct of suppressor design, it can be a problem if you are a CIA spook or suburban hunter. But in the end it is mostly a manageable problem for some, and very minor inconvenience for others. Fuss with it if you must, and enjoy the pleasant sound of silence when it seems least likely.
I swore off shooting unsuppressed long ago, and I only do it occasionally by choice. The suppressor bug bit me hard many years ago, and I have never vanquished its effects. With that in mind, I am always thinking about better ways to hush the noise of my favorite pastime. Who would have thought that an idea I had depreciated would turn my jaded eye.
One of my most favorite rifles of all time, is my old Desert Tech SRS A1. I have run countless barrels through it, I currently have somewhere between ten and fifteen barrels of assorted different calibers. Factory, custom, and even a few specialty barrels. Even with all those options, I still love my old 16” 308 Winchester Covert barrel. The calm and consistent performance of the 308 is like an old friend, so when I got the opportunity to try yet another great 308 Winchester option for my favorite rifle, I jumped at it.
Suppressed Weapon Systems has been in the suppression business for some time. They specialize in the integration of suppression technology directly into the firearm, instead of making the suppressor just a muzzle device. Their MISB (Monolithic Integrally Suppressed Barrel) is available for many different firearms, including my dearest SRS. The modularity of the SRS family of rifles makes it ideal to pair with technology like the MISB, and with a durable cartridge like the 308, it would last for some time.
I’ve often tinkered with the idea of an integrally suppressed barrel for my SRS, but I was always worried about spending the money on an NFA item that would get burnt out and need to be replaced. A valid concern I had always thought, but the MISB is constructed in such a way that the tube can easily be removed and installed on a new barrel/baffle stack. So with my main concern assuaged, I dove in with both feet.
The Suppressed Weapon Systems MISB for the SRS is manufactured from a Bartlein Barrel blank, well known for great quality and precise shooting. The muzzle is cut at a determined length, in my barrel’s case, around sixteen inches. But the remainder of the barrel blank is then cut into the suppressor baffles. The length of the barrel to the breach of the muzzle is fluted, and drilled, I assume to decrease weight but also to add an expansion chamber for venting high pressure gas.
The outer tube of the MISB is a good fit, but not entirely tight, this was a bit of a concern for me at first but I later learned it was necessary to free-float the barrel. Having the outer tube captured and tightened with the barrel would add stress and torque to the overall structure. The tube is sealed at both ends with what appears to be Viton high temp fluoroelastomer O-rings. The muzzle end of the MISB has a threaded cap also sealed with the O-ring, it is knurled and has cuts for torquing it into place with a tool. Its an impressive example of machining design and ingenuity.
I couldn’t wait to get the barrel mounted in my rifle chassis, and test its performance. As soon as I got home with it, I hurried to my basement man-cave and installed it into my SRS. I found the fit to be a bit snug, perhaps more-so than any other barrel I’ve tried. Its easy to get a burr on the shank of SRS barrels, one must be careful. But that was not the case with the MISB, it was simply just a bit tight. Perhaps a slightly smaller diameter would help, but I found it to be consistent, so it was a minor inconvenience. It was the same when I mounted it in my SRS A2.
Once mounted, I headed for the hills to get the rifle zeroed with this new barrel. As usual, it was an easy process. Most SRS chassis will change POI with a different barrel, but it is rarely off by more than a few inches. So a quick re-zero on my scope was easy, and in no time I was using the rifle to shoot steel at 710 yards.
SWS guarantees sub MOA accuracy for three shots with their MISB system, but suggests that 1/2 to 3/4 MOA is expected more often than not. I found my barrel to be consistent with that.
The suppression quality of the barrel was on par with what I expected. The first round pop was significant, but quickly forgotten with successive shots. The slender barrel looks very handsome in my A1 with the longer handguard. A few inches longer than a standard twenty-two inch barrel which pokes just out of the handguard. When mounted in my Covert A2, it was a few inches longer than the standard Covert sixteen-inch barrel when fitted with the DTSS Suppressor.
Conclusion
I think the SWS barrel offers a great option for those looking for a slender and inconspicuous barrel to keep things quiet. At $2200 for a barrel, it is no small investment. But it’s also not much different than a good barrel fitted with a suppressor would cost you, and SRS owners are gluttons for dropping coin on good barrels. And the fact that you can reuse the tube on a new barrel blank having no interaction with the Federal agency everyone loves to hate makes it even more appealing. I look forward to using it even more in the future. -CBM
I have long wanted a 22LR pistol, if nothing else just to have some cheap shooting fun for myself and the kids. Its hard to beat the 22 for teaching kids the responsibility that firearms demand, and they are so fun to shoot that anything less than a brick of ammo just wont do.
The only thing that kept me from buying one over the years were concerns of performance. There always seemed to be issues with 22LR pistols, be it malfunctions like a jam, or being finicky when it came to ammunition. All I wanted was a gun that ran perfectly every time, and one that I didn’t have to worry about what to feed it.
The Taurus USA TX22 pistol caught my eye at SHOT Show 2019, I immediately fell in love with the feel of the pistol, the grip did not feel like many of the 22 auto pistols I had held before. It felt like a full size gun in my hand, the grip texture gave an almost sticky feeling in your palm. The well balanced and lightweight TX22 felt much like an M&P, or maybe a Sig Sauer P320.
Another great feature of the TX22 is it’s 16 round magazines, and it comes with two. Most 22 auto pistols are single stack 10 round magazines, it is refreshing to see that barrier being broken.
For the many patrons to the NFA, adding a suppressor to your favorite pistol is a must. Many of the 22 pistols available today come with threaded barrels for suppressors, but the TX22 even comes with the adaptor collar needed to mount the suppressor.
When I picked up my TX22 from my FFL, I already had a box of ammo and suppressor in hand. So it should come as no surprise to you that I didn’t even make it home before shooting this handsome little Taurus.
The TX22 shown with suppressor collar installed, without it, the barrel is flush to the nose of the slide.
A quick stop by my local shooting spot armed with 100 CCI Mini Mags was just enough to wet my whistle. It was the fastest five minutes of my life if I recall, those hundred rounds burned through the TX22 like grain through a goose. I was now addicted to this thing, I temporarily left my range to get two important things; More ammo, and my son. I knew he would love this thing as much as I did.
A few hours later, after Junior and I had stopped by Cabelas, we were ready to go for round two. I had purchased an assortment of ammunition, a pretty good spread in my estimation. I wanted to try everything, from the cheapest bulk ammunition to the ritzy high end stuff. I even bought a couple different boxes of subsonic ammunition, to see how the TX22 would handle it.
The next few hours of shooting turned out to be some of the funnest we’ve ever shared, magazine after magazine of plinking fun. We tried every kind of ammunition I brought, the cheap bulk stuff from Remington, the Winchester 333 pack, CCi subsonic, Remington Hornets, and even some Aguila Eley Prime. I was ecstatic with the performance, after shooting six or seven hundred rounds, we hadn’t experienced a single failure (but for the 730 fps subsonics, they will not cycle the gun, even suppressed). My favorite ammo for the TX22 would have been both the CCI subsonic 1050fps, and the Winchester 333 pack. Both of them shot very accurate from the TX22, at least more so than the rest.
The pistol runs flawless whether suppressed or not. There is of course a bit more back-pressure when shooting suppressed, this causes the gun to foul a little more aggressively but that is no surprise. I loved shooting the gun without the suppressor too, it is balanced perfectly, and fit me so well that I found myself hardly using the sights.
The very mild recoil of the 22LR is soaked up nicely by the recoil spring, the gun hardly moves in the hand when fired. Follow-up shots are easily made, and can be done so very quickly.
The trigger of the TX22 features a trigger safety, but utilizes the whole shoe vs. a blade safety like many are accustomed to. The striker fired TX22 trigger is very clean, and resets are pretty short as well. I would love to shoot this gun in some kind of three gun competition or something similar, the inexistent recoil and fast shot to shot time would be a blast.
The sixteen round magazines were nice to have as well, one thing about 22’s is you spend a lot of time reloading. So having sixteen rounds to shoot prolonged the time one spent at the shooting line. The magazines have a small circular pin through the follower that you can pull down slowly as you add rounds to the feed lips until it is full.
The gun is easily disassembled following the directions in the owners manual. With as much ammo as you will go through, you will need to clean it often. Especially as dirty as most 22 ammo is. No tools are needed, except for removing or installing the suppressor collar. And I would suggest removing it after every range session, if only to clean it. I’d hate to see it get stuck on the barrel by all the 22 gunk.
The TX22 has a single magazine release, though it can be switched from side to side. It comes configured for a right handed shooter, but the simple directions in the manual allow lefties to switch it over to their liking. I initially found the magazine release to feel a bit small and perhaps difficult to purchase with my thumb. However I quickly withdrew that observation after shooting the gun, at no point during all my shooting did I find it to be a problem. Mag changes were done quickly and without any issues.
The TX22 with the Silencerco Spectre II suppressor
The easily adjustable sights were another welcome feature. There are two screws you can adjust with a micro flat blade screwdriver, one is for elevation adjustment, and the other for windage.
The TX22 also features an ambidextrous safety, with familiar positioning and function. Up for safe, and pulling down with the thumb puts the gun into the firing mode.
The front of the polymer frame features an accessory rail where you can add you favorite light, laser, or other device.
As it turns out, the Taurus TX22 is everything I hoped it would be when I first held it in a Las Vegas casino. It shoots as good as it handles, it’s function matches it’s handsome looks. It brings some great new features that were long overdue.
I love this little pistol, its been hard to put down. I even left my usual CCW at home, just so I had an excuse to have the TX22 with me so I could look at it, and show it to friends. Not that I would recommend a 22LR for a carry gun, but it sure was nice to have such a light and narrow pistol inside my belt for a change. We had fun shooting the pistol at the range, as well as a little squirrel hunting. The SilencerCo Spectre II made the gun so quiet, we could sneak into acorn distance.
You mess with the bull, you catch these horns.
The only negative things I have to bring up about the TX22 is regarding the magazine design. As I removed them from the box, the floor-plate of both magazines was easily pushed off. The first time resulted in my magazine guts getting shot out across the floor. They aren’t big pieces, so it took a bit to find them all. When I tested the second magazine for the issue, I found it to be the same, the floor-plate retainer didn’t seem to have enough of an anchor to keep them in place.
Oddly enough though, the problem never reoccured. After shooting the gun a few times, I again tried to get the floor-plates to slide off. But even with aggressive pressure they stayed in position. Perhaps the vibration of shooting helped seat them better? Either way, the problem has never been repeated.
Another concern is more of a user problem than a design one. When loading the magazines, it is easy to want to just pull the follower down well ahead of the cartridges you are feeding into the lips. This can cause cartridges to tilt inside the magazine, causing an obvious malfunction which usually requires emptying the magazine and starting anew. This problem is easily remedied by only pulling the follower down to allow the next cartridge to be fed into the magazine. One at a time until all sixteen rounds are loaded.
These are minimal complaints, and surely not something that would inhibit my purchase of another one. The Taurus USA TX22 is a fantastic pistol all around, it is simply done right. It wouldn’t surprise me if its a design they continue to build on for additional pistols, and I will be watching and waiting for it.
Some of you have seen CBM Jr. following along on some of my adventures, he’s been my little hunting companion since he first came on the deer hunt when he was three years old. He has grown up quite a bit, not missing a single hunt, to the point that he thinks he’s one of the guys in our hunting group. This year marks a special point in his life, as it will be the first year that he is old enough to hunt himself. Just last month he finished his hunter safety course, and he is excited as ever to go hunt elk, and deer with the big boys. He has long hunted small game with his little .17HMR, but it surely wont do for anything bigger than rabbits and chucks. Junior shooting his .17
I had anticipated this for some time, and for the last year or so I have been putting together the necessary parts to put him together a proper rifle, one he can use and be proud of as long as he has need for it. A huge thanks goes to the PR community for helping me get the parts put together for a very economic price. Both my kids come hunting and shooting with me as often as possible
The game plan I had started with the basics, what action? I wanted this to be good, but cheap. So I figured a good Remington or Savage action would do well, and in short time, I had my hands on a good 700 short action. The next question which I spent a lot of time debating was caliber. Sure, there are plenty of easy options. How many kids start their hunting career with a 243? That was an easy answer, but my kid inherited his Mother’s taste. And he seems to desire elk hunting more so than deer. Granted, plenty of elk are killed every year with 243’s, but I wasn’t sure I wanted something that light for a kid who has big dreams of elk. I also was taking into account the practicality, I already have everything to reload 308, so that would be a valid option as well (downloaded for a small kid of course). So after much debate, going back and forth, I decided to settle on the .260 Remington, the choice of distinguished shooters everywhere. It didn’t hurt that it’s one of my favorites as well, and I have everything I need to load it. Plus, a 260 fits right in that spot; plenty big to hammer any deer or antelope, and just big enough to work well on elk. With the added benefit of still being short action, and modest recoil when downloaded with light bullets, just right for this kid.
So I started looking for a 264 barrel, and to my surprise, I found the perfect barrel for my project. A slightly used pre-cut AAC barrel made for a Remington. It was a 24″ with an 8 twist, but I had a friend cut it down to 16″, and re-threaded for the much needed muzzle embellishments. The stock was made from an old walnut Remington, that I cut down, and did some whittling to fit a smaller framed hunter. I added a pic rail to the front for a bipod mount, and bottom/side flush cups for sling mounting. A bit of bedding compound, and some grip texturing, followed by some keen squirts of Duracote to handsome up the ensemble.
I started out with a very in expensive 120BTHP from PVRI, loaded up on top of 38g of some Benchmark I had been given. With mag feed seating depth, it gave around 2800 fps from the short little barrel. And with very little adjustment, or load development for that matter, I could pound 8″ targets at 500 yds all day long. That’s about all the shooting I’ve done with it yet, I plan on letting him get comfortable with it, and once he has burned up the 500 120 PVRI bullets, maybe we’ll step him up to the 140’s. At first I had put a Minox 1-6 scope on it, but the scope currently riding on top is a US Optics TS8X in 30mm rings and a 30MOA EGW scope base. He’s grown up, but he still likes that little rifle.
Believe it or not, I am into this project for less than 500$ (except the scope of course) Thanks to many who either gave me parts, or their time. It’s a fine rifle, one that any kid getting into hunting would be happy to have.
-CBM
Coldboremiracle 