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17 hmr sound moderators

Rimfire, centerfire or black powder related topics

Re: 17 hmr sound moderators

Postby BunnyDoom » Tue Nov 22, 2011 6:48 pm

Not a fan of the DM80, though to be fair I've had some bad experiences with the supplier (decoying uk)... the newer .22 one I had had affected accuracy very badly, and shifted zero about 3 inches left at 50 yards. SAK and Parker Hale are as quiet, just different type of sound - 16" CZ 452 Style. The older style DM80 I have had on my HMR is ok though.

Anyway, back to the HMR - I've spent a great deal of time and money researching different mods for the HMR, as have 2 of my mates - basically there is nothing that will ever make this a quiet round. I also shoot .243, and like the HMR, the most you can hope for is to quieten the muzzle crack so you aren't deafened... nothing will ever reduce the sound of the round going supersonic in mid-flight.

If you listen to an HMR down range, you will hear a pop/crack about a half second AFTER impact, which is the sound of the round reaching you - so your quarry will be dead before it's heard the shot. Its mates will Foxtrot Oscar though! :)

I personally think the SAK or Sirrocco are the best .17 HMR mods I've tried (in terms of price, size, and noise reduction). I have an older DM80 on mine at the moment, but I'm changing it in for a Wildcat (as soon as they bother to reply to my emails).

General consensus seems to be the PES/MAE Muzzlecan is the actual quietest (but it's big and costs £240). Then the Wildcat Whisper (Still £120+), then all the rest... less than 3 decibels difference between them so humans shouldn't be able to tell the difference.

If I wasn't into wasting money I'd probably just stick with a SAK - which BTW I don't ever clean until accuracy is effected! I spray a light covering of WD40 in it when you first get it, then shoot until it is effecting accuracy. The dirt/coke that builds up helps muffle the muzzle crack and makes it quiter.

IMPORTANT - never leave your moderator on your rifle as it will corode the crown, and never carry the rifle barrel-up as detritus from the moderator could dislodge and fall into the bore... meaning next time you take a shot you could buldge the barrel!
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Re: 17 hmr sound moderators

Postby Redditch » Wed Nov 23, 2011 5:37 pm

I just bought a CZ452 Varmint in 17HMR, and order a Wildcat moderator for it. I thought I had the Whisper as everyone told me the Predator 8is only available as a 22 minimum, but this IS the Predator 8 and is marked up as MAX 17 Cal, so maybe they have changed their minds and now made a 17 calibre specific model ? It is VERY quiet indeed, but at 168.00 pounds it should be,and the build quality is also excellent :thup:
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Re: 17 hmr sound moderators

Postby shooter1 » Sat Dec 10, 2011 1:33 am

iv got a sirocco sm11 on my hmr have a look on youtube its one of the best on the market and only £35.
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Re: 17 hmr sound moderators

Postby Redditch » Mon Dec 19, 2011 5:22 pm

I have the Wildcat Predator 8 with the 17 calibre insert. This is a full bore centre fire moderator, that you can change the inserts on (Also available with more baffles than the 8 in this i.e. Preadator 12). The Predator 8 is a lot lot quiter than the rimfire benchmark of the Whisper. Okay, it's a lot more expensive, but well worth it's price, sounds like an air rifle now, the only sound is the super sonic crack, no other sound emits from it !! \It's an over the barrel design. Mine is on my CZ 452, whichh I heavily modified from the original walnut stocked version. Below is a picture :grin:
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