Ok here is a question.....how many here thinks that moderators help accuracy or doesn't help accuracy????
- Thread starter Bud-sc
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You are asking a question that you can answer yourself, just by shooting with and without and seeing your results. On my air rifles, the moderators change the POI and make them quieter. So I shoot without moderators on most of mine because sound isn't a issue. YOUR air rifle may be different...there are a few different brands out there.
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I am a small sample but pcp or springer, I see poi difference, but accuracy seems the same.
I shoot with mods at home and without when away.
I shoot with mods at home and without when away.
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Its going to vary pretty wildly. Even on firearms you can get better or worse or same depending on the gun and ammo used. I imagine a can will affect harmonics so its all up in the air until you try it.
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That it depends on the brand of suppressor, the pellet/slug speed, the pellet/slug "sealing" within the rifling.
The faster the pellet, the the harsher / harder / faster the air pressure "around" and behind the pellet is. The tighter the pellet is to the barrel rifling, the less the air will affect the pellet travel. Less leakage.
All those factors will affect both the sound AND the point of impact change there will be from a bare barrel.
Every gun, and especially by barrel manufacturer, will most likely be somewhat different.
Mike
The faster the pellet, the the harsher / harder / faster the air pressure "around" and behind the pellet is. The tighter the pellet is to the barrel rifling, the less the air will affect the pellet travel. Less leakage.
All those factors will affect both the sound AND the point of impact change there will be from a bare barrel.
Every gun, and especially by barrel manufacturer, will most likely be somewhat different.
Mike
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I used my moderator on my hft500 as a barrel tuner. There is only a grub screw that holds the adapter to the barrel so I can move the whole thing up and down the barrel a bit.
You can see the poi change even 1-2 mm at a time.
The hft500 is .177 and I have a .25 moderator on it to prevent clipping and also act as a sort of muzzle brake to diminish air turbulence as the pellet leaves the barrel.
You can see the poi change even 1-2 mm at a time.
The hft500 is .177 and I have a .25 moderator on it to prevent clipping and also act as a sort of muzzle brake to diminish air turbulence as the pellet leaves the barrel.
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Been told most RAW's are more accurate with a moderator and or air stripper....mine has a large reflex moderator and it's more accurate than I can shoot.
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When I started out moderators just seemed a mandatory thing. I had no idea. I still run them.
On one of my guns I put an Air Impulse 1200 series on it and it shot terribly. No change in tune and the shop said try the 1300. I did and the gun shot lights out. Put the 1200 back on and it was bad. We took the 1200 apart and there was no sign of clipping, no shavings, clean as a whistle. Shop told me they sold the 1200 a couple days later and made sure the buyer shot it before he paid for it. Worked just fine.
So, do they help with accuracy? Maybe on some guns they do. On others the wrong one can negatively affect accuracy.
On one of my guns I put an Air Impulse 1200 series on it and it shot terribly. No change in tune and the shop said try the 1300. I did and the gun shot lights out. Put the 1200 back on and it was bad. We took the 1200 apart and there was no sign of clipping, no shavings, clean as a whistle. Shop told me they sold the 1200 a couple days later and made sure the buyer shot it before he paid for it. Worked just fine.
So, do they help with accuracy? Maybe on some guns they do. On others the wrong one can negatively affect accuracy.
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My FX500 and 400 both have moderators and shoot lights out. If a moderator changes the poi it's ok if it doesn't shift with shooting.
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Hey guys, I shot my Benjamin SAM. The pellets were everywhere using a Donnyfl Sumo. But with the FX model of the DFL, it was a lazer. SAM is .22 cal shooting Crosman 14.3’s
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They increased the accuracy when I owned a couple Hatsan BT65's but with my current guns there is no appreciable difference in accuracy.
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I have purchased and 3d printed at least 15-20 LDCs for various airguns.
I have never seen one help with accuracy.
Sometimes the pellets will hit the LDC which will be bad for accuracy.
But helping with accuracy if not going to happen.
I have never seen one help with accuracy.
Sometimes the pellets will hit the LDC which will be bad for accuracy.
But helping with accuracy if not going to happen.
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I’ve never used one so there is that…lol. It seems this would totally be different for every gun/tune. I don’t think you can say they overall help or degrade in a blanket statement.
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I have tweaked my moderators to shoot the same poi as without a mod attached. Many times, the shroud has not been finished well on the end bringing the mod to attach at a slight angle, checking runout on my lathe, I can see if I need to true the shroud end or like last night, I trued up the end of a printed mod so it would shoot true.
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I likewise do the same, although this won't work on AR's that don't have a fully supported barrel which will experience some droop, although its not too difficult to even temporarily affix your barrel in a way that you could run a test on your moderator to ensure no POI shifts upon its removal/addition.
If a moderator is changing your POI, its generally either due to droop from added weight on an unsupported barrel or misalignment of the bore to baffle/endcap (clipping) either due to untrue ends or poor construction.
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I truly believe there really is not solid answer for this, if you are going to run a moderator... tune the rifle with the moderator on , if you are not, tune it without, see where you are at and go from there.
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My experience shows less accuracy with a moderator…some appreciable, some not so much..All more accurate without…I still use one occasionally when noise is an issue…
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