A YHM .30 Cal Phantom was $650 (with 5/8-24 FH), 2 QD flash hiders for the AK/AR were $75/apiece, and the tax stamp was $200. So that's right at a grand to have it on two rifles I love witha little room to grow when I can finally start on my .308 project. I'd been saving for a while, and it was my last gift to myself right before I got married (well, a SilencerCo Sparrow somehow was paid for and submitted as well as a SBR Form 1...
) There are other suppressors that are loved here, but for my first can I'm absolutely ecstatic about it. The muzzle blast from each shot is comparable to a .22LR HV round. It's sorta ears safe in an open field, but I wouldn't want to do it for more than a few shots due to ejection port snap. If you want hollywood quiet, a centerfire rifle is not a good starting point. The great thing about a YHM can is the versatility; if you look at their homepage, they have a lot of thread adapters in stock. There's a member here, mjohn3006, that has a YHM .30 cal can on a AR, AK, FAL, and M1A IIRC.
Don't forget to check your barrel threads. I wanted to try my can on a AMD-65 pistol, but the threads were too long/slightly off center so I went with a WASR-10 sidefolder. The AR is a DoubleStar 20" A2, nothing fancy, but a lot of fun. If you shoot any tannerite with your silencer on, you'll definitely hear which is the shot and which is the reactive target!
I'm sure a few other members will be along to talk about which .30 cal cans they use/prefer, but for me I'm very satisfied. I've wanted a multi-caliber can since 2003, and finally got the money together this year, and it's been wonderful