Back in the dark ages (AKA just over two weeks ago) when tax stamps cost $200, many people—including myself—set out to get "just one" suppressor to cover all of their bases. For most of us, that meant a .30 cal suppressor that could be used on most, if not all of our rifles. My first can was a Rex MG7K .308, which I still use, though fortunately I have a lot more options now. Today, with tax stamps being free, I'd never tell anyone to only limit themselves to one suppressor, but if I had to keep only one rifle can, it would be the B&T SRBS 762.
My SRBS was sent out by Longbow Arms of Clarksville TN; if you're in the area, check him out! We have a rather interesting can here, this one being an older "Gen 1" slab-side model, 3D printed from Inconel. It's 6.6" x 1.7" or so in its dimensions, and it's a rather svelte 12.7oz—not bad for an extremely durable can. This model came with B&T's SureFire-compatible HUB mount, which I used for a little bit on my Block 2 with a SF Warcomp and had no issues. Ultimately, though, I ended up switching it out for the Cryptid Designs Muzzle Brake HUB mount, this particular one in 5/8x24 for my BCA-10 chambered in .308. This is a neat muzzle device that has a HUB mount built right into it, so you don't need to use a separate mounting system. The single port muzzle brake acts as a sacrificial baffle here, as a 16" .308 is quite a beast to tame.
The aforementioned BCA-10 is where the SRBS spends most of its time, and it does a fantastic job on an AR-10. It's a low-backpressure can, which is greatly appreciated on an overgassed rifle, and it also translates the recoil impulse from very snappy to a more gentle push. I noticed a positive difference in recoil even between the SRBS and a traditional can, and it makes the rifle very pleasant to shoot. It's not a short can, so it wouldn't be my preference on a longer CQB or "run and gun" rifle, but for a shorty or on a DMR-style rifle, it's right at home.
Sound performance was very solid, especially given the fact that a semi-auto will never be truly quiet, particularly with supersonic ammunition. Besides the AR-10 and 14.5" Block 2 in 5.56, I also ran this on a 10.5" 5.56, a 6" .300blk, a 10.5" 7.62x39 AK, and even my Sig Cross (16" .308 bolt action). 5.56 performance was decent, with a nice low tone; 7.62x39 and .300blk supers gave similar results. .300blk subs weren't super quiet but not terrible, as might be expected. Finally, the bolt action .308 performance was acceptable—I wouldn't want to do it for more than a shot without ear pro (if that), but there definitely was suppression of the gunshot. I was surprised that it performed as well as it did, given the fact that it's a flow through design.
Speaking of backpressure, as I mentioned it does very well. Long strings of fire are very doable without noticeable gas to the face, which is a big deal on a semi-auto carbine that will be run hard. This is a feature that many first-time suppressor buyers might not value as much, until they stick the can on the end of an AR and run a few Bill Drills back to back. Doing that with a traditional can, like my Rex MG7K, gets unpleasant pretty quickly unless you've tuned your AR for suppressed usage (more on that in the future). Just like lugging around a very long and heavy suppressor, gas to the face is something that can really turn people off to shooting suppressed. The SRBS gets top marks in this category.
Going a bit into the more niche aspects of shooting, namely in low or no light (particularly under Night Vision), the SRBS is a mediocre performer here. There was occasionally visible flash even during the day shooting it on my AR-10 and AK, and I performed my standard 5.56 flash test on it: 3 rounds of M193 out of an 11.5" 5.56 rifle. As you'll see in the video, flash was not bad by any means, but it also was noticeable for all three rounds. Better-performing cans, like the Griffin Recce 5K, are almost invisible by the third shot. Some of this is to be expected from an overbore situation (namely, a .30 cal can for 5.56 rounds), but it's something to be aware of. I've heard that the "Gen 2" tic-tac pattern SRBS 762s are better with flash, but I can't confirm this.
Finally, we come to the aspect of value. These cans are available in both Inconel and Titanium, with the Ti versions being more expensive. Silencer Shop currently has the Inconel version without the SF-pattern mount listed for $975, which I think is a pretty decent price. When you look at the other competitive options on the market—Velos 762, CAT ODB, Hux Ventum, etc—I think it's a pretty good choice. Only the Ventum is cheaper, but it's also a few ounces heavier.
There are definitely some new options coming out that might be even better values, thinking specifically of the Ridgeback Sahara 300 among others.
There's never been a better time to get into the suppressor game, so what are you waiting for? A .30 cal can is probably the best first centerfire can to get (assuming you have rifles larger than 6mm), and when you add suppressors in the future--which you will!--it will still have a place. Suppressors are like guns: having specific cans for specific setups is extremely nice, and lets you maximize your performance and shooting experience. The SRBS is a decent jack-of-all trades which performs best on semi-autos but can still work on a bolt gun in a pinch. I can't say that I've shot every .30 cal low backpressure can, so I won't claim that the SRBS 762 is the best of them, but I do know that if I had to go down to just one suppressor for all of my rifles, it would be this one.
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