In the first Dayattherange suppressor accuracy test, my Air Force buddy DM took seven rimfire suppressors, the Vudoo 360 carbon-fiber rifle and Lapua Midas+ to the range to answer what sounded like a simple question:

Can a suppressor actually make a precision rimfire rifle more accurate?

That first test gave us some interesting answers—but it created even more questions. The SilencerCo SwitchBack produced the smallest warm 10-shot group at .463″, while the White Sparrow showed remarkable cold-to-warm consistency at .530″ and .531″.

More importantly, that article ended with a challenge:

Can we reproduce the results?

Well…

The Air Force Had Its Turn. Now It’s the Marine’s Turn.

This time I got behind the rifle.

And naturally, being a Marine, I couldn’t simply repeat what the Air Force did.

Seven suppressors became ten.

I also added something that turned out to be one of the most interesting parts of the entire experiment:

What happens with the thread protector installed versus shooting with nothing at all on the muzzle threads?

Same basic mission.

Same Vudoo precision platform.

Same premium Lapua Midas+ ammunition.

But a different shooter, more suppressors and another variable to investigate.

Welcome to Round Two of the Dayattherange Rimfire Suppressor Accuracy Test.

The Rifle and Ammunition Remain the Same

I didn’t want to reinvent the test.

The original experiment used a Vudoo action with a 360 carbon-fiber barrel, topped with a Leupold Mark 5HD 3.3-18x, and fed Lapua Midas+ ammunition.

That combination gives us an extremely capable .22LR platform.

And that’s important.

When we’re looking at differences of only a few hundredths of an inch, I want a rifle and ammunition combination capable of showing those differences on paper.

This wasn’t a sound test.

I wasn’t trying to determine which suppressor was the quietest.

This was about one thing:

ACCURACY.

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10 Suppressors — Plus Two Unsuppressed Configurations

For Round Two, I tested:

• KGM RF22
• Otter Creek Ti22
• Huxwrx RAD22
• Dead Air Mask
• SilencerCo SwitchBack
• SilencerCo White Sparrow
• Yankee Hill Stinger
• Gemtech GM22
• SilencerCo Sparrow-Ti
• Griffin GM22

But there were actually 12 configurations on the firing line.

Before declaring that a suppressor improved or hurt accuracy, I wanted another baseline.

So the rifle was also fired:

With the thread protector installed

and

With the thread protector completely removed.

That seemingly insignificant change produced one of the biggest surprises of the test.

The Results

Configuration	First 5 Shot Group	Second 10 Shot Group
No Thread Protector	.976″	1.140″
KGM RF22	.629″	.678″
Otter Creek Ti22	.550″	.326″
Huxwrx RAD22	.632″	.338″
Dead Air Mask	.536″	.550″
SilencerCo SwitchBack	.508″	.364″
SilencerCo White Sparrow	.435″	.345″
Yankee Hill Stinger	.383″	.602″
Gemtech GM22	.578″	.321″
SilencerCo Sparrow-Ti	.369″	.296″
Griffin GM22	.463″	.424″
Thread Protector	.367″	.380″

And there is a lot to unpack here.

🥇 The Sparrow-Ti Came to Play

Let’s start with the obvious.

SilencerCo Sparrow-Ti — .296″

That was the smallest second group of the entire test.

And it wasn’t preceded by some mediocre first group.

The Sparrow-Ti went:

.369″ → .296″

That’s two impressive groups from the same rifle/suppressor combination.

That’s exactly what caught my attention.

The original test taught us not to get overly excited about one tiny group. A suppressor can look fantastic for five shots and then tell a completely different story as more rounds go downrange. That’s exactly what happened with the RAD22 during DM’s original test.

The Sparrow-Ti didn’t give us just one interesting number.

It gave us two.

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Gemtech and Otter Creek Were Right Behind It

The Sparrow-Ti wasn’t alone in the .3s.

The Gemtech GM22 turned in a .321″ second group.

The Otter Creek Ti22 followed at .326″.

And the Huxwrx RAD22 wasn’t far behind at .338″.

Suddenly we had four suppressors producing groups between:

.296″ and .338″

That’s only .042″ separating four suppressors.

At that point we’re talking about differences smaller than the diameter of a .22LR bullet.

That should immediately tell us something:

Don’t crown a definitive champion based on one target.

But it certainly tells us which suppressors deserve more ammunition.

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The White Sparrow Does It Again

The White Sparrow was one of the most interesting suppressors in the original Air Force test.

DM produced:

.530″ cold

and

.531″ warm.

Only .001″ separated those groups.

This time I produced:

.435″

followed by:

.345″

Different shooter.

Same rifle.

Same ammunition.

And once again the White Sparrow showed that it deserves to be in this accuracy conversation.

Maybe that first test wasn’t a fluke.

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The SwitchBack Is Still Hanging Around

The SwitchBack won the original test if we judged strictly by the smallest warm 10-shot group.

DM shot:

.463″

That actually beat his .495″ unsuppressed baseline.

This time the SwitchBack produced:

.508″ → .364″

Once again we’re seeing very respectable accuracy.

The SwitchBack didn’t take the smallest group this time, but across two shooters and two tests it continues to produce numbers that make me want to keep testing it.

Then There Was the Thread Protector…

This may be my favorite part of the entire test.

With the thread protector installed:

.367″

.380″

That’s a difference of only:

.013″

Forget suppressors for a moment.

That’s excellent consistency.

In fact, the thread protector produced a smaller first group than every suppressor except the Sparrow-Ti.

Think about that.

No baffles.

No titanium.

No fancy suppressor design.

Just the factory thread protector.

And two groups essentially sitting on top of one another in terms of size.

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And Then I Took the Thread Protector OFF

Here’s where things got weird.

With nothing installed on the muzzle threads:

.976″

Then:

1.140″

That caught my attention immediately.

Compare that with the thread protector:

Thread Protector:
.367″ / .380″

Bare Threads:
.976″ / 1.140″

That’s not a subtle difference.

The second bare-thread group was exactly three times the size of the .380″ second thread-protector group.

Even more interesting:

Six suppressors beat the .380″ thread-protector second group.

• Sparrow-Ti — .296″
• Gemtech GM22 — .321″
• Otter Creek Ti22 — .326″
• Huxwrx RAD22 — .338″
• White Sparrow — .345″
• SwitchBack — .364″

That deserves another test all by itself.

Is This Really About Suppressors—or Barrel Harmonics?

This is where this experiment becomes much more interesting than simply ranking suppressors.

A suppressor changes the system.

You’re adding mass to the muzzle.

You’re changing how the barrel vibrates during firing.

You’re potentially changing point of impact.

You’re changing gas behavior at the muzzle.

And our thread-protector results suggest that we shouldn’t automatically assume the comparison is simply:

Suppressor vs. No Suppressor.

The better question may be:

How does changing the mass and configuration at the muzzle affect this particular barrel’s accuracy?

I’m not prepared to claim the thread protector caused the improvement from 1.140″ to .380″.

We need more groups before making that conclusion.

But a difference that large absolutely deserves further investigation.

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First Group vs. Second Group — Again the Story Changes

This was one of the major lessons from DM’s original test.

Five shots can tell one story.

More rounds can tell another.

And we’re seeing that again.

Look at the Yankee Hill Stinger.

First group:

.383″

Very impressive.

Second:

.602″

Now look at the Gemtech:

.578″ → .321″

Otter Creek:

.550″ → .326″

SwitchBack:

.508″ → .364″

The ranking changes depending on which group you look at.

That’s why I continue to believe that one tiny group doesn’t make an accuracy champion.

The Marine’s Leaderboard

Based strictly on the second group:

🥇 SilencerCo Sparrow-Ti — .296″

🥈 Gemtech GM22 — .321″

🥉 Otter Creek Ti22 — .326″

4. Huxwrx RAD22 — .338″

5. SilencerCo White Sparrow — .345″

6. SilencerCo SwitchBack — .364″

7. Thread Protector — .380″

8. Griffin GM22 — .424″ Quietest by a long shot and less felt recoil

9. Dead Air Mask — .550″

10. Yankee Hill Stinger — .602″

11. KGM RF22 — .678″

12. Bare Threads — 1.140″

But that’s only one way of looking at these results.

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Which One Would I Pick?

If you forced me to pick the suppressor that impressed me most from this test alone, it’s difficult to ignore:

SilencerCo Sparrow-Ti

A .296″ group is outstanding.

More importantly, its other group was .369″.

It didn’t come out of nowhere.

But I’m also paying very close attention to the White Sparrow and SwitchBack because we now have results from both the Air Force and Marine tests showing those suppressors performing well.

And the Gemtech GM22 and Otter Creek Ti22 just earned themselves another trip to the range.

Air Force vs. Marine — We Still Haven’t Settled This

DM started this mess.

His original seven-suppressor test showed that changing suppressors could produce measurable differences in group size and that five-shot performance didn’t necessarily predict what happened over longer strings.

Then the Marine showed up.

More suppressors.

More ammunition.

And now apparently we’re investigating thread protectors too.

Typical Marine efficiency.

But there’s an important point underneath the friendly rivalry.

We changed shooters and we’re still seeing some of the same suppressors showing up near the top.

That makes the next experiment obvious.

Shoot. Measure. Analyze. Repeat.

The original seven-suppressor test and complete Air Force results are here: 7 Suppressors vs. Lapua Midas+ — Can a Suppressor Make a Precision Rifle More Accurate?

Air Force vs. Marine: Same Rifle, Same Ammo, Same Suppressors — Different Results

And I’d have some fun with it:

My Air Force buddy DM is probably going to wish I left this table out of the article.

Seven suppressors were common between both tests. When we compare the 10-shot groups head-to-head, the Marine produced the smaller group with all seven.

Before my fellow Marines start celebrating too much, this isn’t proof that Marines are genetically superior precision shooters—although I’m certainly not ruling it out.

What it really demonstrates is why we’re doing these tests more than once. Same rifle. Same Lapua Midas+. Same suppressors. Change the shooter and repeat the experiment, and suddenly we have a much stronger dataset than one great-looking target.

One statistical comparison I’d add to the article: across those seven shared suppressors, the Air Force averaged about .660″ for the 10-shot groups; the Marine averaged about .458″. That’s roughly a 31% smaller average group for the Marine run.

That gives you an irresistible video graphic:

AIR FORCE: .660″ AVG

MARINE: .458″ AVG

MARINE WINS 7–0

Grab Some Popcorn and Tea and Enjoy The Long Form Video