Sound Moderator

CDSG Shooting Sports

sako85

Well-Known Member
Use my Sako 85 with a PES Sound moderator on but am now doing some long stalks after fallow prickets.

If I was to remove my mod would it change the zero of the gun?
 

Claret_Dabbler

Well-Known Member
SF, the only way to find out is to remove the can and shoot a group at a target. It may, probably will, shift POI. The difference might be small enough to ignore. You may be lucky.
 

The Mole

Well-Known Member
Yes it will affect the zero, but the group could shift in any direction as you are changing the harmonics of the barrel. As Claret Dabbler says, you may be lucky and the shift could be tiny, but the only way to find out is to try it on a target.
 

Bandit Country

Well-Known Member
If you have 'target type' adjustable turrets on your scope you should be able to zero the thing with mod on and then shoot a group mod off, zero it with mod off and note the difference. You can then dial in the zero for mod on or off depending on your stalking circumstances.
 

243varmint

Well-Known Member
Yes it would my T3 does by a long way. Also my friends sako75 alters a long way.
Try what Bandit Country says,on my S+B you can mark the 2 different zero's when the caps are off.

I think you will just have to put some rounds down the range
Good luck

Jonathon
 

ejg

Well-Known Member
The on off method with two scope settings worked for me.
Moderator on-off needs about 5 clicks elevation and 5 windage 1cm/100m on my rifles.

edi
 

Thar

Well-Known Member
Mine changes a lot, 3.5 moa in the horizontal and 1.5moa in the vertical.

Best rgds

Tahr
 

Trapper

Well-Known Member
Figure
That I paid the expense for a screw-cut and a mod for my tikka's ! Why do I want to shoot without them!!! :eek: Zeroed in as I want it so, unless I want to make a big boom, why have I bothered to moderate!!!
I agree that they make you top heavy when carrying but with a Harris bi pod , or some decent sticks , why interchange !!Back to the Range for a comparison for me !!Coz honest I haven't compared.
Trapper
:lol: (I know I should have done it already DUH)
 

243varmint

Well-Known Member
I am of the same oppinion Trapper. I tested mine when I first bought it just to see. Haven't been out stalking without the mod. I have the 600mm barrel on my T3 plus a Jet z compact so it's a bit like carrying a pole vault pole about but with a ruck sack type sling it's ok.

Jonathon
 

Offroad Gary

Well-Known Member
i would have thought that going out after fallow prickets would be one of the times that you would want to be moderated? :confused: unless of course one is enough :)
 

lwcdart

Well-Known Member
Leave it on buddy!

If it shoots fine as it is then I would leave it on-(if it aint broke then dont fix it),

Be it right or wrong I leave all of my rifles with "can on", they only come off to be cleaned, they get hiked all over my New Forest ground shooting Fallow & on long hil stalks north of the "Big Wall"

After using a mod that works properly for you then I just cant see the point to going back to not using it & dealing with all that bloody recoil, noise & loss of target impact sight in the scope once again.

Having had most mods on the market at one point I do find that the PES end cans work for me better than the over barrel models.

If you are just having a gander about after a few fallow & clicking up a few km per stalk then I would leave it, in addition to the fact that fallow can at times be pretty silly when grouped at times - with the added benefit of a mod-you may get a chance of dropping more than one should you wish to, the most I ever had from a very large herd was 5 in number, I then ran out of bullets before they ran off at a rate!

Had the rifle not been modorated I am sure I would have only had 1 or 2.

Regs Lee
 

Trapper

Well-Known Member
Well chaps n Chappeses thought I would check zero with and without mod .
Some photos attached for perusal , just a bog standard Mod on/Mod off ,
mod was wildcat predator 8, I would say having gotten used to the mod , firing without again was kinda stone age, just my opinion.Grouped fairly well had to make some sight adjustments, as i had the scope off after march n shoot w/e. I must also add that after taking the mod off my first grouping never HIT THE TARGET!!!, that was with a kinda hot barrel so I waited 20 minutes ,and a quick pull through later I was back on target, fairly reasonable grouping , although low and right off centre. So for me there is definatley some change in grouping, well thats my waffle hope it hasnt bored you ,
Regards to all
Trapper.
zeroingMod308002.jpg

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zeroingMod308013.jpg

zeroingMod308014.jpg

zeroingMod308015.jpg

zeroingMod308016.jpg
 

Trapper

Well-Known Member
ooops dont know what happened to photo tags but think they are self explanatory.
Trapper
 

charadam

Well-Known Member
OK - here we go.

It's the calibre - .308's do not group well and will go anywhere if you take the mod off.

Now in my slit trench, helmet on, hands over ears and wearing blindfold.
 

Trapper

Well-Known Member
I agree my first grouping on non moderated never hit the target at all regardless ! If that was a stag instead of a piece of paper , well he would be relieved , but I tend to get 1" groups down to 1/2 " that is on factory ammo , think Wallace and grommet might call that a Close Shave!!
They do tend not to hang around for the party .(not Wallace n grommet )whilst you check zero though, :eek: . For the beast and myself I would consistently like to drop on the spot , no errors no mucking about , so I guess we should all seek to improve our skills , check zero regularly. I was spot on last week but this week!!!!
Trapper
 

Jager SA

Well-Known Member
charadam said:
OK - here we go.

It's the calibre - .308's do not group well and will go anywhere if you take the mod off.

Now in my slit trench, helmet on, hands over ears and wearing blindfold.


.308s dont group? Thats a bold statement, heres a .308 that groups sub MOA without a moddy! :lol:

TRGLoad.jpg
 
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