How big does a mod have to be.

[pj1]

I have a .22 hornet and am looking for a new moderator for it. Im not a fan of reflex type mods but on paper they do a better job. Would this be the case with the small amount of powder used in the hornet or is it just more weight and cost for no benefit. I have tried my atec cmm4 rimfire and cmm4 .30 cal on the rifle. On the rimfire version although the manufacturer says its suitable for hornet it is showing signs of pitting on the baffles. The .30 cal copes fine but obviously the holes is way to big. Ive looked at the aimsonic compact ( not convinced of the stainless nut arrangement and possible glare in the scope ). And also the swift nightingale but not much information out there on these.
Regards pete

 

[GunsmithDolphinholme]

I use my .30 cal mod on my .22rf. If the noise level is acceptable for you just stick with the one, why spend more money when you don't need to? You only shoot one at time. The only reason I use a mod is to protect my hearing.

 

[Deerless]

Hav

 

[Deerless]

Have a look at the new MAE mods, stainless steel and made by a manufacturer that has been in the business longer than most.
Just got one of their new compact units for my 22BR and it beats the competition hands down.
it is rated for 243, stainless and so will last for years without any worry re the gas cutting and dis similar metal issues of most of the so called modern mods out there.

 

[bewsher500]

I use a T12 scout overbarrel on my .22WMR and .222
6.5mm bore (vs 5.56mm calibre)
it is heavier than some but it depends on what you want from it
very good sound attenuation

 

[Hornet 6]

Pess Mini-T on my Hornet, have also used the smallest Pess muzzle can, both work well.
Mod choice is really controlled by how many rounds you will fire, if less than 500 per year
I would seriously consider a Sac, but you will need a new one every year, but for the price
it's a lot cheaper even in the long run than a proper C/F moderator.

Neil.

 

[pj1]

Thanks for your replies guys. There is very little difference between the two mods i have tried. Only in tone rather than volume. I do feel that the rimfire mod struggles to cope with the volume of gas and would like to see if a centre fire mod of appropriate size would be quieter.
So obviously my 308 with 43 grains of powder will need a bigger mod to cope with the gasses produced. Does anybody know the volume of gas produced from a .22 hornet with 12.5 gn of powder 18 inch barrel and if a reflex style mod would really give much more moderation over a muzzle can.

 

[Hornet 6]

The Pess Mini-T is aimed at rimes, but is full stainless construction, it is the quietest mod I have used on my Hornet.
But a Sac is only slightly less efficient, the down side is limited life.
I also have ASE mods, a 30 cal SL5 and .22 size CQBS, both are heavier, and not as good in the noise stakes.

Neil.

 

[joe soapy]

I have a .22 hornet and am looking for a new moderator for it. Im not a fan of reflex type mods but on paper they do a better job. Would this be the case with the small amount of powder used in the hornet or is it just more weight and cost for no benefit. I have tried my atec cmm4 rimfire and cmm4 .30 cal on the rifle. On the rimfire version although the manufacturer says its suitable for hornet it is showing signs of pitting on the baffles. The .30 cal copes fine but obviously the holes is way to big. Ive looked at the aimsonic compact ( not convinced of the stainless nut arrangement and possible glare in the scope ). And also the swift nightingale but not much information out there on these.
Regards pete

You say the "30 cal works well but hole to big"... whats the problem with that, does it allow much more noise?

 

[pj1]

It sounds about the same volume wise. I can hear more of a crack when using the rimfire mod which makes me think it moderates the bang better and im hearing the supersonic crack. As opposed to the .30 cal which is a deeper sound possibly more of the bang being heard. Either way im not convinced that either the rimfire or .30 cal are as good as they could be. Its a difficult thing to judge when on paper some moderators are far better than others but it comes down to the shooters ear to judge. And ive very little experience of moderators in the small centrefire stakes

 

[billh]

Best fit is as manufacturer recommends but a military specialist in these matters once advised me that the volume should be between 8 and 11 x barrel volume.

 

[pj1]

Ok thank you. I picked up a hardy gen four yesterday. Was very nice and would go ok on my hornet but as far as i can see they only do then in .26 and .30 cal. So would i be loosing moderation by not have an tighter exit hole

 

[jcampbellsmith]

Ok thank you. I picked up a hardy gen four yesterday. Was very nice and would go ok on my hornet but as far as i can see they only do then in .26 and .30 cal. So would i be loosing moderation by not have an tighter exit hole

All my moderators are .30 cal regardless of what rifle they are fitted to. Regards JCS

 

[RPA.260]

I am certainly no expert on moderators but what I do understand is larger the internal volume to dissipate the noise the better the result will be. I have a reflex T8 compact and the larger one. One goes on my .260rem and the 30-06 both RPA, if they are looked after they last mine are both 10years old and just gone through my round count it has had x6200 .260rem and x2400 30-06.

The second is on my 22-250 which is ready for re barrelling with 5600 rounds through it. Before it was on my 22-250 it was on a .223 which fired a lot. I have tried many different mods at the range I shoot, people seem to have a different mod each week. I can say nothing I have seen yet is as quiet to make me change, yes they are bulky but I think no heavier. Both are 30cal mod and seem as quiet on the 30-06 as it is on the 22-250.

 

[pj1]

Ok thanks for your input. Up until yesterday i haven't liked reflex mods as ive seen a lot of rifles where the rear bush has worn a shiny ring in the rifle bluing. The guy in the shop yesterday said that the rear bush is a guide only and if it is wearing the bluing off it is to tight a fit and needs easing out s little. Is this right as i thought the bush had to be near ad close a fit as possible

 

[scotch_egg]

If a decent thread is cut on your barrel there really isn't any need for a bush. I never ran one with the T12 PES I ran. Even if you run a bush it certainly should not touch the barrel.

 

[Hornet 6]

The guy in the shop yesterday said that the rear bush is a guide only and if it is wearing the bluing off it is to tight a fit and needs easing out s little. Is this right as i thought the bush had to be near ad close a fit as possible

Sort of correct, the bush is a guide only, once the mod is tight the bush should not touch the barrel, usually about .004" clearance.
(.002' each side)
But while spinning the mod on the bush will contact the barrel as the thread should have some clearance so the shoulder can do
it's job and square the mod up, you will end up with a shiny ring.

Neil.

 

[Sauer90]

Important bit is the surface area inside the tube and the internal parts(baffles), simply put more surface area = more effective gas cooling which results in more effective 'silencing'.
Small moderators work well (great for hunting) not so effective when they heat up.

 

[RPA.260]

The clearance on the plastic bush isn't so critical on the mod at all, once done up tight the threads will keep it square. Its there really in case you drop the rifle or bang the mod, it wont bend the tread on the barrel. It doesn't seal gases etc as said above its just a guide, I have a blued rifle with one on, the bush I opened up on the lathe a little and have a couple turns of insulation tape around the barrel. The stainless ones I don't worry about

 

[pj1]

Ok so I'm now thinking between two mods a hardy gen 4 or a pes 22 wm. Its to go on a weihrauch hw 60 j. 18 inch semi heavy barrel and Nikon prostaff 32 mm low mounted scope. These mods are probably as far apart as they get which is why I'm stumped. The pes is slim has tighter exit hole and guaranteed for 10000 rounds. Is about 20 grams heavier Than the hardy and is about 158 quid. The hardy is 290 grams 13 mm fatter has larger exit hole but only extends barrel by 80 mm and costs about 280. Big difference in price and not something that cam be swapped with that much ease