roedale moderator is very load

bob_mullis

Well-Known Member
hi
i have a roedale mod on a 243 and it is quite a lot loader than other mods. i have added two more baffels but that makes no difference. i have tried different ammo as well to see if that makes a difference.
my riffle has a m18 thread so would consider a reflex mod if anyone has one for sale!

Have i got a bad one or are they all quiet a lot loader than other mods.
 
If it is as loud as you say on a standard .243 rifle and the extra modules make no difference, I would suggest you either take it back to where you bought it, there must be some sort of guarantee on it, or get in touch with Roedale direct, I'm sure he will sort something out for you.
 
Bob, get shot of the Roeale and give Jim Baker a call. He's near Bridgwater and is a bloody good gunsmith who makes his own mods. They're similar in some ways to PES/MAE stainless steel mods but British and better.

I've got a couple and they're great -very quiet and slim, and literally will last a lifetime without needing to maintain them!
His website is www.jimbakerbulletsnguns.co.uk.

oh and to answer the question, I've compared a roe dale with my JB Marauder mod, and there was no contest, the JB wiped the floor with it!
 
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Are you sure its a .243 mod? what baffle configuration are you using? can you tell me which baffle pattern you have ( check the rear of the baffles, they will either be machined with 4 slots, 3 slots of 2 slots.

Perception plays an enormous role when it comes to evaluating sound on a personal level.

When evaluating sound moderators one should be aware of what the product was designed to do.

The Roedale Delta Ultralight moderator is desgned to perform the following criteria:

1. to protect your hearing
2. to be as light as possible whilst remaining robust enough to perform satisfactorily
3. to withstand the heat and firecutting effects of propellant gasses satisfactorily
4. to be as compact as possible within the required noise reduction capacity
5. to be modular and upgradable
6. to be relatively simple to manufacture on modern cnc machinery
7. to be affordable


Without a moderator full-bore rifles give peak sound pressures levels over 150dB(C). Only the
smaller .22 rimfire will give peak levels below 140dB(C).The peak level under hearing protection ( that is reaching the ear despite ear muff type protection bieng worn)
could exceed the Noise at Work Regulation’s 200Pa (140dB) Peak Action level as the
effectiveness of hearing protection worn during firing can be reduced by the recoil and muff
movement.


The Roedale Delta IV Ultralight Moderator consistently reduces the peak noise level to below 137dB(C). With this moderator
full-bore firearms up to .308winchester and similar can be fired without hearing protection.

A similar reduction for the immediate vicinity will also be provided. this is additional protection for a stalking dog, or an
observer without hearing protection.


A Delta IV will lower the peak sound pressures levels of a .308win / .243win / .260 Rem to around 133-135 dB(C). This is well under the 137 dB(C) level nessecary to achieve hearing protection.
When you consider the weight. 175g the diameter, 39.7mm and length, 147mm and the fact that the Delta IV has only 4 baffles, then the level of sound reduction is excellent.
It should be considered for what it is, the smallest lightest full bore moderator providing sufficient hearing protection. It would be unfair to compare it to the likes of a larger and heavier moderator such as a Reflex T8. But thats exaclty what i will do in a moment.

If you desire more sound reduction it is possible to add additional baffles. Adding 1 standard length baffle will increase sound reduction by around 2 dB to 3dB depending on the length of the rifle barrel, the intensity of the load and atmospheric conditions.

A Delta VII will reduce the peak sound pressures levels of a .308win / .243win / .260 Rem to around 128 dB(C) -129 dB(C). Thats around the same reduction provided by a Relfex T8.

When you consider a T8 weighs 640g ( thats 405g more than the Delta VII or nearly 3 times the weight) is 260mm long ( thats around 40mm longer than a Delta VII) and is 50mm in diameter ( thats 10.3mm wider than a Delta VII )

So with all things considered the Roedale Delta series of Ultralight moderators provide excellent performance gram for gram.

If you don't consider them quite enough, it is possible to add baffles and adding baffles will provide increased sound reduction.

If the original poster would like to contact us, we can verify he has the right baffle type and help him to improve the performance.

​Regards Pete
 
Bob, get shot of the Roeale and give Jim Baker a call. He's near Bridgwater and is a bloody good gunsmith who makes his own mods. They're similar in some ways to PES/MAE stainless steel mods but British and better.

I've got a couple and they're great -very quiet and slim, and literally will last a lifetime without needing to maintain them!
His website is www.jimbakerbulletsnguns.co.uk.

oh and to answer the question, I've compared a roe dale with my JB Marauder mod, and there was no contest, the JB wiped the floor with it!

There doesnt appear to be any pictures or prices on his website - any chance you could give us an idea of size/weight and cost please?
 
I have found over the years moderators to boast this and that but the simple fact is if you go small and light your will have a trade off for noise reduction. The old t8 is still one of the quietest mods but is large. I have a north star and a Atec modular both light and small both quite a bit louder than my t8 but i new that when i down sized.
 
6pointer.. you hit the nail on the head. which ever direction you go in moderator design there will be trade offs.. maximum sound reduction = large capacity, multi baffle, increased weight = negative effects on rifle ergonomics. Light and small = less noise reduction but null effect on rifle ergonomics.

Its a case of defining what your needs are and purchasing accordingly..

As it says on the packaging. All rifles tested with Delta Series Suppressors comply with the latest personal exposure limit set by the European Directive 2003/10/EC.

what that means is that the moderator will quieten the noise of a rifle to under the harmfull level.

It does not say on the package "this is the quietes moderator available"

But from the testing we have performed over the last few years and continue to perform ( last test session was wednesday 29th May) increasing the baffles fitted will reduce the noise even further. a Delta VII Ultralight is definately in the same sound reduction league as a Reflex T8. But it is smaller, lighter and shorter.

Like you say, The T8 is still one of the quietest moderators around.. and it is the one against which all others are measured.. we regularly do comparisions and a T8 is one we regularly compare against. and we are interested in all types of feed back with regards to our moderators.

Stupid comments like some of those above do not get us, or the rest of the industry any futher, but feed back from customers certainly does.

Suggesting a moderator is "typical rubbish" is simply off the mark, a fundamental discussion about design elements, performance and the trade off between capacity, weight and noise reduction is far more usefull to everyone..

OP. thanks for the PM. lets continue via email.

regards Pete
 
The help and customer service which i have recieved from Pete at Roedale has been amazing and restored my faith in roedale moderators. Had all my questions answered and solutions offered to me.
Thanks again Pete
 
There doesnt appear to be any pictures or prices on his website - any chance you could give us an idea of size/weight and cost please?

er, yeah... Just went to his site and found this: Jim baker Bullets and Guns - Marauder Sound Moderator... :lol:
​nota great page, but I think they're fairly newly listed on the site...

last time I spoke to Jim about getting another mod, he said he had expanded the range to 4 mods, and they are all the same construction to cover everything from .17 - .338lap. They're reflex style, and all of the same diameter, just different lengths. You could have the little .17 can drilled out to .30, it just wouldn't be as quiet as the longer models..

my marauder mod is for .22 cf so is just over 11" long, and 1.5" in diameter. It comes back about 5 or so inches behind the muzzle.
Its a lot slimmer than the wildcats I've got (getting rid of!) so doesn't reflect the light back onto the scope when lamping which is a bonus, and its a fair bit quieter than them too, so I'm well chuffed with it, plus no need to ever clean the damn thing, ever!

I think they retail at £250, but I got a good deal out of Jim and got some money off!


I was trying to get him to show me what happens when he 'fireforms' them (for destruction testing - my term, not his) at his range, but didn't have enough time to hang around, but it sounds bloody impressive! :D
 
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