Rowan Engineering Air Stripper - .177 or .22 which one do I have ?

Rowan Engineering Air Stripper - .177 or .22 which one do I have ?

Joined: January 10th, 2011, 2:09 am

June 18th, 2017, 12:20 am #1

I recently bought a used but not abused Rowan Engineering Air Stripper which is supposed to be for a .177 caliber rifle or pistol. I dropped a JSB .22 pellet through the stripper and it went straight through easily. I measured the inside diameter of the air tube (barrel side) and it is approximately 5.83mm. The .22 pellet skirt measured 5.72mm.

For sure a .177 (4.5mm) pellet will go through without issues. Basically, I want to know if I can use the air stripper in a .22 (5.5mm) air rifle.

Appreciate responses.


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Joined: November 9th, 2009, 2:41 pm

June 18th, 2017, 12:51 pm #2

around a .22 pellet. Any misalignment would in all likelihood cause clipping. It should be fine for a .177 and may work for a .20.
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Joined: April 30th, 2009, 7:12 pm

June 18th, 2017, 1:36 pm #3

I recently bought a used but not abused Rowan Engineering Air Stripper which is supposed to be for a .177 caliber rifle or pistol. I dropped a JSB .22 pellet through the stripper and it went straight through easily. I measured the inside diameter of the air tube (barrel side) and it is approximately 5.83mm. The .22 pellet skirt measured 5.72mm.

For sure a .177 (4.5mm) pellet will go through without issues. Basically, I want to know if I can use the air stripper in a .22 (5.5mm) air rifle.

Appreciate responses.

Intention was certainty for use on a .177! I used it on a HW100 that I put a short threaded barrel on.
I took it off in favor of a small ldc.

There's a really good chance that I will be without cell service this coming week but if you want to email rowan engineering, ask about the sizing of the cones and if they will sell just the cone insert if this isn't the right size for .177.

I'll be in touch when I get somewhere that will let me connect.

If I sold you the wrong thing, I'll make it right.

Last edited by jcdx25 on June 18th, 2017, 5:06 pm, edited 1 time in total.
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Joined: January 10th, 2011, 2:09 am

June 18th, 2017, 10:50 pm #4

Jeff. You said it was for a .177 caliber and it surely fits the bill. I just wanted to test the stripper in a .22 caliber rifle. That is all, but I did not want to damage the cone by trying something stupid. Good advise, I will contact Rowan.
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Joined: January 10th, 2011, 2:09 am

June 18th, 2017, 10:53 pm #5

around a .22 pellet. Any misalignment would in all likelihood cause clipping. It should be fine for a .177 and may work for a .20.
Precisely the reason why I asked. I bought the stripper under the assumption that it was a .177 caliber and I did not want to damage the cone. Thanks again.
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Joined: January 10th, 2011, 2:09 am

June 19th, 2017, 10:01 am #6

I recently bought a used but not abused Rowan Engineering Air Stripper which is supposed to be for a .177 caliber rifle or pistol. I dropped a JSB .22 pellet through the stripper and it went straight through easily. I measured the inside diameter of the air tube (barrel side) and it is approximately 5.83mm. The .22 pellet skirt measured 5.72mm.

For sure a .177 (4.5mm) pellet will go through without issues. Basically, I want to know if I can use the air stripper in a .22 (5.5mm) air rifle.

Appreciate responses.

This is the text answer:

"The inside diameter of our 0.22 stripper cone is 6.7mm. Although a 0.22 pellet will just fit, it is likely to clip due to recoil so is not recommended to use a .177 cone with 0.22 pellet."

They do sell just the cone for other calibers. Thank you ...all.
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