I was at the American Suppressor Association shoot the last two years and the most common gun there and the best to shoot each time is the MP5. Hands down. I believe it was in Edinburgh this year. Some small town south of Indy. Nice range.
In my experience the MP5 is hands down the best 9mm suppressor host PCC/subgun. The MPX is pretty gassy, the scorpion and other straight blowbacks are louder, but decent for the money.
for the 9mm AKs I would buy the Kp-9, hands down, its a good clone of the Vityaz SMG, lighter than the PSA and isn’t unobtanium like the DA gun, the DA gun also is built on a fullsize receiver (IIRC) and was pricey when released.
Its amazing what a couple hundred FPS will do/the sonic boom will do.
I was finally able to get my 22lr can out to the range with a bolt gun. Cci sv was unpleasant suppressed due to sonic boom, but 750 fps cci quiet was rediculous. Quieter than a nail gun.
Shooting suppressed anything is fun, but hard to say what's a favorite.
For 22s, the 15-22 is a blast and super quiet, but so is the 10/22 (I prefer the 15-22 cause the AR feel). At the same time...the 455 gets a lot of love cause 1) it's been a money pit and 2) there's no sound until that bullet hits something. For pistols always have preferred the Buckmark over the MK I-IV
Picked up a MCX pistol recently (efile form 1 sent off a month ago) and it's been getting some attention as of late, making sure reloads run but to me it sounds a bit quieter than my previous 2 300BLK AR builds.
MPX is a blast as well cause it almost is as quiet as the 15-22 with some 147gr bunny fart loads I have. That being said I don't think the MPX is gassy at all, the only time I've ever shot with that had blowback was a machine gun MPX with their giant silencer on it, with that much internal volume and that rate of fire.....blowback is impossible to avoid.
Centerfire pistols....the FNX Tactical is a great host, same with a 1911. For 9mm hosts I've had little to no issues out of my 229, USP, P-01, or Hi Power...but I keep going back to the USP. It might not feel the most comfortable but the thing is a garbage disposal and will eat anything outside of bulged casings
CCI SV should not have a sonic crack as it's rated at 1070fps. I've shot probably 2-3k of CCI SV in the past year suppressed on 16" rifles and have never went super on me. It definitely shouldn't in these hot and humid ambient temps. And my hearing must be getting bad cause SV on a 16" rifle doesn't bother my ears at all. I'm pretty sure SV out a rifle is right at or below 140db. I could be wrong though
CCI SV is my go to load for subsonic ammo and have shot cases of it and not once has broken the sound barrier. Remington "subsonic" though will 10-15% of the time (least for me) and Aguila Super Extra doesn't work in any of my firearms anymore. It'll stay sub but just won't feed through the mags (outside of 15-22s then it feeds through the mags but light strikes a lot)
Winchester subsonic cycles my firearms much better than CCI SV does, if I can find it for a decent price I buy it, if I can’t CCI SV gets used but I’m prepared to clear at least a few malfunctions.
if it’s a pistol, whatever cheap bulk ammo tends to be subsonic, so whatever is cheapest gets used.