The Otto NoizeBarrier Micro, paired with 3M/Peltor's Skull Screw Communication Tips, are currently all the rage with range-rats.
I haven't tried out the pairing, yet, but I do trust the report of those who have. It's not an inexpensive combo, though - enough that I'm debating between these and the $1K-ish custom-molded in-ears for my next set.
I've put forth what little I know about earpro before, but I'll give it another go, here, and try to tailor it a bit more specifically towards the OP.
The biggest issues with in-ear protection (i.e. "ear plugs") is that what we insert into our ear canal will displace with normal facial movements. Every once in a while, you will have to readjust those plugs. Plugs that are designed with an outside-the-canal, molded (either custom-to-ear or more generic fitment, like those seen on the Surefire EP-series of in-ear hearing protection) "stay" can help keep the in-canal portion in-place a little better,
for some folks.
In-reality, simple -albeit good quality- "foamies" sold for a quarter or 50-cents in those grab-jars on the registration counter of your favorite range actually do a very, very good job at noise-suppression. You'll find that some of the highest NRR numbers are had with in-ear protection,
properly worn.
But "properly worn" is the key here. Be sure you have properly installed your plugs to begin with (Honeywell's [makers of the Howard Leight] website has a good guide in .pdf format), and further, realize that your jaw/facial movements (be it talking or even just swallowing - or chewing gum) can cause the plugs to displace to the point where they are less protective or even not protective at all. Take breaks to re-install the plugs as-necessary. Similarly, while some types of plugs can be re-used (even those cheap "foamies" can, to an extent), they all have finite lifespans.
[
Note that the "lifespan" comment is only intended to be reflective of various disposable single-use or multi-use plugs. This does not apply to various custom-in-ear devices. ]
Same with over-the-ear devices. You absolutely have to be sure that you're wearing "earmuffs" properly: gaps due to your head size/shape, ear size/shape, jawline, hair, and even the temples of your eye-protection can all drastically lower the protective capabilities of even the best over-the-ear muffs.
The noise-reduction rating numbers (NRR) might seem like the way to work at this problem, but it's not, and it's because of this "properly worn" issue. Similarly, it's not additive in a straightforward manner.
It's not quite as objective as it should be, and quite a bit of the blame for this actually rests on us, the end-users. Much of how well any particular over-the-ear muffs works is related to the simple fit of the ear cups over your ears, and that can be affected by everything from how well the cups' padding conforms to your ear/head, to how well the headband(s) adjust to fit your head, to how the cups' seal may be affected by your eye-protection.
And for those who shoot more dynamically than just at a stand-still-in-the-stall range environment, there's also how well the muffs stay on your head/ears as you start doing more crazy stuff. Yawning, talking and chewing will each displace those in-ear plug little-by-little, and over-the-ear protection may be immune to that: but quickly drop your head to one side, and those over-the-ear muffs are much more likely to come flying off or simply become displaced, versus in-ear plugs.
Generally, the larger the ear cups, the more sound insulation can be stuffed in there, and the higher the noise reduction rating. The problem with the bigger cups come with unique shooter's anatomy/shooting style - some may find that their rolled-up/in shoulders during pistol shooting to cause interference with the larger cups; some may not be able to properly cheek their long-guns. This is why some cups may be relieved towards the bottom outer edges (i.e. certain ProEar Gold models - and
@cico7 , I'll get to this more specifically in just a bit) and is also a reason why some shooters choose slimmer-profile cups (such as those of the ubiquitous Howard Leight Impact Sport or cool-guy gear like the Sordin/MSR).
With the slimmer cups typically come less insulation material and lower NRRs. So what do you do, if you feel that the gunshots come through too much? simple - "double up" with a pair of earplugs under the muffs.
Many of us will use an overlying set of electronic muffs with the volume turned all the way up so that regular conversation can get through our earplugs or will use earplugs that are designed to allow for normal volume conversation/noises to pass through relatively unabated (like the Surefire EarPro plugs).
But there's more:
With the electronic muffs, they work in one of two ways:
They simply turn off or "clip" when they detect harmful noise or, alternatively, they use "compression" technology to render the incoming dangerous levels of noise into safe levels (i.e. that gunshot will still sound like a gunshot, only at a safe level).
The former, unfortunately, has the habit of simply blocking out all sound at a busy range, particularly if there are other shooters on the line with you or otherwise close to you. This sadly isn't great for allowing you to converse with your lane-mate or training partner when you're at a public range or when you're in a training class and on a hot firing line.
The latter - typically not insignificantly more expensive - allow for much better capability to actually converse with someone else under such conditions.
But not all "compression" works the same. The more expensive units typically will have both quicker "attack time" (how fast they switch on to "attack" that noise once they sense it) as well as quicker "release time" (how quickly they'll allow ambient sound back into the equation again). The faster "reactions" of the device make it easier to carry on conversations).
Finally, not all protection are designed to protect in the same manner.
As I wrote previously (
https://www.thearmorylife.com/forum/threads/teaching-your-kids-to-shoot.711/#post-13837) my daughter doesn't like shooting the AR with her ProEars ProTac SC-Gold, with an NRR of 25, but has no complaints when I switch her over to my Sordin Supreme Pro X, which has a significantly lower NRR at 19.
Why is this the case?
Remember that different earpro can attenuate different noises differently.....
Want a deeper dive into the "whys" here?
These two resources from M4Carbine.net should provide some fun:
and.....
When you bring up MSA Sordin Supreme ear-pro among folks who are serious about shooting sports, it’s pretty much guaranteed that you’ll hear spec-sheet-based performance objections from…
trevoronthetrigger.wordpress.com
Yet, does this mean that the Pro Ears are no good? Not at all,
@cico7 - as for all but shooting the AR, my daughter clearly prefers these over all of the other pairs that I have.
In-reality,
@cico7 , how any one of these devices interplays with your unique physical attributes and your perceptions can make one or the other better or worse. If you can beg/borrow/steal
some to find out for yourself, if only for a few minutes on the line or for one evolution/drill, that can often provide quite a bit of insight that you wouldn't otherwise have. [I wrote a bit about my experiences with the Sordin versus Comtac III versus the Pro Tac SC Gold -
https://www.thearmorylife.com/forum/threads/electronic-muffs.885/page-2#post-16572]
Hope this helps!