>35 dB - 42 dB noise isolation
So could these also double as hearing protection while out shooting? Serious question btw.
It blocks noise from 35-42 dB, it doesn't reduce it that much. If you look on their site, they say that all of their ear plugs are rated NRR12. They claim that the rating is bullshit and their plug real world is NRR20, which might be enough for most outdoor shooting, but I wouldn't really trust them on that.
Impact sports are rated nrr22, and it's fine for most outdoor, but you'd still need to double up with plugs for indoor or loud guns. If you don't want to double up, then look for something at least nrr30. I've never had to double up on the Peltor H10A, but I hate wearing them.
>wears turned-up earbuds when shooting
Well there's no doubt why you're deaf, imbecile. This is like a flashlight-on-a-lightspeed-ship argument for deafness. Only more stupid.
22lr can still be loud. Depends entirely on what ammo and what gun. If you go to a paid range, most of them (most of the ones I go to at least) don't let you wear ear buds and makes you wear proper ear pro.
Are you trying to use them just as earplugs or do you want to listen to music?
If you want them for just earplugs, foam earplugs will be more effective. The cord of those will naturally pick up sound. Not a lot but a little is more than none.
f you want to listen to music then put closed-back headphones over your earplugs. You can still hear music decently over the earplugs, but the earplugs give adequate hearing protection and the headphones may add a little more.