Sound moderators questions 17 Rem

PSE Composites Limited

srvet

Well-Known Member
Evening all

Does anyone know if it is possible to rethread a sound moderator to a larger thread diameter e.g. from a 1/2 UNF to a 17x1

also would it be foolhardy to use a 17hmr moderator on a 17 Rem.... I'm assuming that it would be !!

If any of you have any specific recommendations regarding moderator choice for a 17 rem I would like to hear them. Am currently considering a cal specific DM80, another Third eye Spartan (have 2 already) or a one less charlie mod

Other suggestions greatfully received
 

limulus

Well-Known Member
20cal dm80 works very well on my CZ527 varmint.
Easy to strip and clean, not overly heavy ( I can only compare to T8's), and good sound moderation.
 

sir-slots-alot

Well-Known Member
A rifle smith will remove the 1/2 UNF thread and re-thread for 17 x 1 assuming your barrel is thick enough to take it - usually a varmint type profile.

Definitely do not use a HMR mod on the 17 rem unless you have suicidal tendencies.

The 17 cal specific DM80 is very good - If you like the over barrel design. I prefer the ASE CQB or SL5, both of which do a great job of hushing the 17 rem..



ATB
Alan
 

I. Farticus

Well-Known Member
Evening all

Does anyone know if it is possible to rethread a sound moderator to a larger thread diameter e.g. from a 1/2 UNF to a 17x1

also would it be foolhardy to use a 17hmr moderator on a 17 Rem.... I'm assuming that it would be !!

If any of you have any specific recommendations regarding moderator choice for a 17 rem I would like to hear them. Am currently considering a cal specific DM80, another Third eye Spartan (have 2 already) or a one less charlie mod

Other suggestions greatfully received

Am I reading this right - You want to rethread the mod ie to fit an existing threaded barrel with the different larger thread? I think one answer is about rethreading the barrel, so can you just clarify?

Also, have a look at the Hardy Gen IV, as there's a rimfire model out now

Cheers
iain
 

mickyfinn

Well-Known Member
Agree with Alan above rimfire mods should never be used on CF cal, i use DM80 on both my 17hmr and 17rem but they are both 17 cal RF and CF mods great mods that do the job and can be stripped for cleaning.
 

Jagged77

Well-Known Member
Can't help you with the rethreading - I would recommend ASE sound mods however. I have one for my 17 Rem (.22 cal mod) and it works extremely well.

On the subject of using a RF mod on a centerfire (any centerfire even .22 hornet) DO NOT DO IT UNDER ANY CIRCUMSTANCES....!! There is a high probability it will fail sending shrapnel in all directions. I've seen it happen and its scary.
 

fizzbangwhallop

Well-Known Member
Colin at OLC built me a stainless non-strippable for my Sako A1 20Practical.... smaller and lighter than my Zet Z Compacts and, more importantly, very quiet.

I'm impressed!

's me 5p's worth.

atb
Fizz
:cool:
 

srvet

Well-Known Member
Thanks for the replies everyone, yes I was asking about changing the thread on a moderator rather than recutting the barrel. I have considered that option too so that I could use a mod off my 308. Not sure just how effective it would be though. Reason I was asking about the 17hmr was after watching a YouTube vid where they were reviewing a rimfire mod that I thought they said would then be tried on a 223. Seemed like a bad idea to me but wasn't sure what others were using.
Cheers
S
 

Hornet 6

Well-Known Member
I have just had a moderator re-threaded from 1/2x20 to M15x1 without any issues by member of this forum, "danpb".
And truly excellent job he made of both the barrel and moderator :thumb:

Before you decry using an HMR mod on a C/F, depends on the moderator, I have a Pes Mini-T which is sold as a .22wmr/ .17hmr moderator
which I bought for my .22 Hornet, on advice from JMS Arms. I have also used it on a .243 with no problems at all, not the quietest mod for
a .243 but plenty good enough for a few shots while foxing.

Neil. :)
 

Munty_Hunter

Well-Known Member
I can recommend the Swift Nightingale moderator, it will do everything in .22 from the LR up to the 250 and the same for anything .17 extremely light moderator and only £130!!!!
 

srvet

Well-Known Member
I can recommend the Swift Nightingale moderator, it will do everything in .22 from the LR up to the 250 and the same for anything .17 extremely light moderator and only £130!!!!

That was the mod that was being tested on the YouTube video, any idea of expected lifespan?
 

Munty_Hunter

Well-Known Member
Richard said he has one on a 223 has fired 500 shots and it sbows about 10% erosion, he also said that the cores are replaceable and inexpensive (forgive me i didn't ask how much).
 

jay 22

Well-Known Member
Richard said he has one on a 223 has fired 500 shots and it sbows about 10% erosion, he also said that the cores are replaceable and inexpensive (forgive me i didn't ask how much).

they are very well built. but he needs to start making them in different threads. then they would sell alot more. because half inch threads are not going to be very popular on cf rifles.
 

gmart122

Well-Known Member
Does anyone know if it is possible to rethread a sound moderator to a larger thread diameter e.g. from a 1/2 UNF to a 17x1

also would it be foolhardy to use a 17hmr moderator on a 17 Rem.... I'm assuming that it would be !!

Rethread depends on design but more likely not possible than possible. All threads which are in sheet metal, it won't be possible, I.E. T8. Any welded reflex mods will be very diffficult if not impossible, again T8 and others. Mods which are end of barrel may be but you'll need to check the amount of material left after reboring and threading. Going from a relatively small thread like 1/2UNF to a large one like M17 X 1 reduces your chances again.

Be very careful about using a mod designed for rimfire on a centrefire as the pressures will be higher. If you send me details of the design you have, I can comment on its use for CF use. Also use any proof test as indication only - it's only two very slightly over pressure rounds. Gives you no marginality of the test pass or how it will deal with heat and age.
 

srvet

Well-Known Member
Firstly a big thanks for the collective thoughts you have shared. I don't have a mod for the 17 but am looking round for one. My thought regarding rethreading another mod was in case a secondhand one came up. It seems that everyone thinks well of the DM80 and the One Less Charlie mods so these will probably be the way I will go.
Cheers
S
 

Ronin

Distinguished Member
Think youd be better with a calibre specific moderator for best sound attenuation S

You could buy one mod and have several different baffle stacks and thread inserts, but it wouldnt be that much saving on the cost of a new or 2nd hand mod..

 

srvet

Well-Known Member
Think youd be better with a calibre specific moderator for best sound attenuation S

You could buy one mod and have several different baffle stacks and thread inserts, but it wouldnt be that much saving on the cost of a new or 2nd hand mod..


Thought about different baffle stacks and came to the same conclusion. Also I was mindful that mistakenly having a 17 cal baffle find its way into a 308 moderator may spoil my day!! To avoid this eventuality I figured a totally different mod with a different thread diameter would be preferable for the pipsqueak.
 
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