I believe the it's because the S510 has a fully shrouded barrel.
I have regretted selling my CZ200 (same as the S200) even since the day I shipped it. With a good LDC, it is as quiet as any PCP with the same muzzle energy. Mine shot at 12 FPE, and the muzzle end is about as loud as a TX200. The shooter will hear more from a TX200, but that mechanical sound is insignificant compared to muzzle report.The AA 510 is shrouded and baffled. However, I think an external LDC still makes it much quieter.The CZ200 is also lighter, shorter, and easier to shoulder. The CZ barrel is absolutely awesome.
I shoot my S510 in the basement of my house and the wife can hear nothing but she can hear me shoot my springers and Benjamin 392
I don't know if this will help, but I have a AA510 Ultimate Sporter, and I measure its sound level in the mid 60's db. It has the permanently bonded moderator, so it may be quieter than the standard AA510. My RAW HM1000, with the largest moderator is around 55 db. My HW 97 is low 70's.
My son owns the S 200FT in 177. The gun was loud from the start. After adding the air splitter it got louder. Tom
AA 200's are bare-barrel. If you ant them quiet, are going to have to add on a device.AA 510's are shrouded (they come with a built in device).So if you were to head-to-head compare the noise, even with the 200's shooting slower, they'd be louder by quite a bit. Compare them with good devices, the 200's would likely be quieter (being lower powered).
Quote from: Ribbonstone on February 17, 2016, 06:47:00 PMAA 200's are bare-barrel. If you ant them quiet, are going to have to add on a device.AA 510's are shrouded (they come with a built in device).So if you were to head-to-head compare the noise, even with the 200's shooting slower, they'd be louder by quite a bit. Compare them with good devices, the 200's would likely be quieter (being lower powered).Thank you for that. But since any device that reduces the sound is very illegal here in Canada, it looks like the S510 is the way to go. Particularly since it's available for sale here. I'm trying to find out if (like other guns such as the Marauder) the gun available here is modified in any way over what's available in the States or Europe, regarding sound or shroud.
If you are in Canada and limited to 500 fps I don't think you will find the s200 very loud. I have the target (low power) version of the s200 and it is not very loud.
FYI:http://www.a-s-i.co.uk/Documents/fx%20biathlon%20agn%20feb.PDF
Quote from: elh0102 on February 16, 2016, 07:26:56 PMI don't know if this will help, but I have a AA510 Ultimate Sporter, and I measure its sound level in the mid 60's db. It has the permanently bonded moderator, so it may be quieter than the standard AA510. My RAW HM1000, with the largest moderator is around 55 db. My HW 97 is low 70's.When you say "permanently bonded" moderator, have you any idea if that's the same for S510's sold in all countries? Here in Canada any sound suppression system is quite illegal (SIGH) and some guns that usually include some sort of suppression are modified specifically for Canada and others are simply not available here.But hearing that it's quieter than the HW97 is a good measure because a friend shoots with one and I don't think it's all that bad/loud.