DPT Moderators, a word of warning

[Ozalid]

DPT Moderators fantastic bits of kit!

 

[Miki]

I've not had this problem with mine (it coming loose) and have fired up to 20 shots at the range on different occasions. I have found it gets tight if I don't clean/oil it but never as tight as you describe. I also cycle the modules too, moving the first baffle to the front after 20(ish) rounds have been through it. Both my 22-250 and 25-06 get dirty with a build-up of carbon being greater nearer to the barrel (not unexpected really).

Did you manage to get the reflex chamber off by any chance ? or the part that screws onto the barrel ?

 

[User00033]

I've got four now, and have owned two previously that went with the rifles when handed down to nephews. Have you read the care instructions that come with the suppressor? They are also on the website too, it clearly states that the threads need to be kept lubricated with lithium grease, and not to over tighten. Maybe this is the underlying cause, maybe not, but that's the only reason I can think of. Has it ever been dropped? Slightly out of round maybe?

Yes, after a string it is necessary to check for tightness on the muzzle thread. My .243 has a tendency to loosen slightly as it heats and then cools, I only have this problem on this one Lightweight Contour barrel.

On last week's 6 day hunt it was rubbish weather most of the way and every night back in the shed there was a full strip down, dry, clean, lubricate and reassembly of the team's rifles. One of the young fellas is a strong lad who has a tendency to over tighten things without realising, he did it to my .223 suppressor when teaching him how to maintain them. His over zealous but well meant effort was the only time I've ever struggled to get a module undone.

If you have ongoing concerns and despite lubrication it still isn't right, contact Darren the owner of DPT he's a good bloke.

http://www.dpt.co.nz/attachment.php?id_attachment=3

 

[Ozalid]

Deleted

 

[jimmy milnes]

All sectional mods will stick together if not taken down and lubricant added my dpt on my 223 is stuck together as is my atec on my 6.5 they still work perfectly so I'm not to fussed
As for working loose never had an issue with this
J

 

[Malxwal]

I use one with S/S baffle and two extra baffles on my 47. Yes, a bugger if you over tighten the modules together, but always easier freed up after a good heat up via a decent string !
I too cycle modules around, and periodically clean and re grease.

 

[EMcC]

I use one on my 30-06 and have not had a problem with coming loose but as regards the modules, I see no reason to undo them as I am sure none of my smokeless powder generates enough coke to worry about !
I also have an A-Tec and when it came from Jacksons it had a sticker on it stating that it was not to be did-assembled other than by a competant gunsmith and I don't have access to one of those after every shoot

 

[ejg]

I have quite a few Roedale mods that are similar in construction. Why would one want to take them apart anyway? My ultralight mods are in use since at least seven years and never taken apart. Only get a squirt of wd40 every now and then. They actually get quieter if a bit dirty.
edi

 

[Cottis]

I use one on my 30-06 and have not had a problem with coming loose but as regards the modules, I see no reason to undo them as I am sure none of my smokeless powder generates enough coke to worry about !
I also have an A-Tec and when it came from Jacksons it had a sticker on it stating that it was not to be did-assembled other than by a competant gunsmith and I don't have access to one of those after every shoot

Yeah I chuckled when I ripped the sticker off mine and thought to myself "yeah right, why make it strippable then" If/when it dies within the 2 yr period, it will be going back but it seems fine for now. Don't shoot it a great deal though.

 

[Ozalid]

..

 

[ejg]

What many forget is that the design might have not been primarily for taking apart. Screwing sections together is one way of overcoming design issues.
It also helps building a moderator to customer spec. with less parts on the shelf for the manufacturer. Let's face it they are one of the lightest designs available. The very early run 5 baffle Roedale mod I have on my 308 weighs 175 grams. Lasted over 7 years so far and used for the odd comp. I do not know of a lighter moderator on the market.
edi

 

[cjs66]

I imagine by saying “competent gunsmith” them mean not by a “numpty” as they are not exactly high-tech!
Well, I guess I could just leave it alone and forget about taking it apart, but why make something that is clearly designed to be disassembled and cleaned if it’s not required ? I do take peoples points though, so it might be a good idea to forget about all the precision engineering and make it less pricey... Pro

Just cut a MTB inner tube the same length as the mod, slide it over it and forget about it. Squirt of WD once in a while, Bobs ya uncle..

cjs

 

[Edinburgh Rifles]

what are you disassembling it for?

I use two rear sections and one baffle stack personally
The stack needs no internal cleaning or disassembly

No moderator does really

Any moderator that develops rattling bits of carbon just put the vacuum cleaner nozzle at the rear bore and suck it all out with a bit of a shake


Modular allows a reduced number of fully made up moderators to be built and a wider selection of front or overbarrel designs, thread patterns and bore sizes

 

[Border]

Never cleaned any of mine. Just spray of oil inside and stick it on a heater to dry if its been out in wet or cold. Stored so air can circulate around it. Give it a shake from time to time and don't leave attached to rifle. Atec, ASE Utra, Parker Hale and Hausken mods.

 

[bryn]

I have 3 and can’t fault them.
Bryn

 

[levigsp]

I have 4 from 243 to 300 mag and never had a problem with them, the best on the market in my eyes.
I notice you keep commenting on the price of them, why? I didn't think they were more expensive than any other.

 

[Ozalid]

Thanks for all the comments.

 

[Vipa]

I bought one of these for my 30-06 and thought on examination that it seemed well made but expensive for what it was, anyway, it worked ok apart from having a tendency to come loose at the range after five or six shots.
What does happen though, if you don’t watch it, is the modules stick together and are very difficult to separate if you don’t keep it very clean and slacken off each module after use, it took me a combination of jubilee clips and pipe wrenches to separate two modules recently and to be honest I find all this a pain in the ass and wouldn’t buy another.

This is going to be the same with any sectional mod if its not regularly stripped down and greased with ceramic or other heat resistant grease... in the grand scheme of things, unless you intend to constantly add/remove baffles, why take it apart? It is a consumable, when it dies, replace it!

Had plenty of different mods over the years, strippable and non strippable, my DPT is as good if not better than any of the others. Never had any issues with it coming loose but then I always use a bit of ceramic grease on the threads before I fit it.

 

[Cawdor118]

I had a barrel forward and now a over barrel in. 308. Had one baffle stick together but that was because I tighten it too much. Since then it's never happened again and a dollop of copper grease sorted the issue.

 

[big ears]

I had a barrel forward and now a over barrel in. 308. Had one baffle stick together but that was because I tighten it too much. Since then it's never happened again and a dollop of copper grease sorted the issue.

Had the same, sprayed liberal WD40 (other oils are available) left it a few days and it loosened up a treat.