My first Air gun - Commando (modded)

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vijaycool
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My first Air gun - Commando (modded)

Post by vijaycool » Mon Nov 23, 2009 4:38 pm

I have purchased my first airgun Commando .22 cal :D . I purchased from bangalore for Rs 3K. I also tried SISCO, DAWS and G.I.-35. All the three are very heavy 1~1.5 Kilos more than Commando. The trigger is rock hard and i am pulling to the right everytime when i tried to shoot.Cocking action is more or less the same on all models but the trigger is light but firm in the Commando. When you pull the trigger it moves without releasing the sear after 1-1.5cm travel further pressing down releases the sear. There is not much dieseling in the rifle. Infact there is not much oil and grease in the spring. I got Gsmith spring and washer is not available there.I was expecting some considerable loss of power after 100th shot but till now the power is good. I do not plan to put G-smith spring as of now. The breech seal was teared a bit during the purchase. The shop owner gave a new breech seal. Initially the sights are totally out of tune and I dont have any idea how to tune that. By trial and error the sights are somewhat better. I replaced the breech seal with a new one but unfortunately the groove is much deeper 6-6.5 mm which makes the new seal shallow and the air is escaping. It has moderate power can break ordinary bottles approx 25 meters (1st floor to the ground) but failed to break beer bottles. Previously it can make clean holes in the engine oil bottle but after the breech leak it cannot exit the can from the distance to 9 meters. I need to make some shims to compensate the height and planning to replace with O-ring. After successfully zero'ed the sight suddenly a new problem cropped up. After loading when I lock the gun the sear disengages automatically :? . This is dangerous ,sometimes its holding up but many times its not. I need to fix this issue but not sure how to open the trigger assembly. Another problem is the master shot pellets are very tight. I need to press down very hard. When i measured with vernier caliper the bore size is approx 5.28mm from the breech end and 5.19mm from the muzzle end (Choked Barrel?). The pellet dia is approx 5.52mm. I really need to squeeze down to fit.
My hunt for better local Airgun is on. I would be getting AK Agni in the coming months. Another one could be Canon or IHP.


Good points:

1. Light weight compared to the other gun of the lot
2. Trigger is light and it has pre-determined pull
3. Accuracy is decent
4. Stock is decent, Balance is good

Bad points:

1. Unfortunately sear is not holding up when barrel is locked.
2. Front and rear sights are of poor quality
3. Trigger mechanism is within the tube. Not sure how to dismantle.
4. Pellet fitting is very tight and need to apply much force
DSCF5420.JPG
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DSCF5422.JPG
Trigger Assembly. Need help on dismantling
DSCF5423.JPG
DSCF5426.JPG
DSCF5430.JPG
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Last edited by vijaycool on Sat Dec 26, 2009 9:20 pm, edited 4 times in total.

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Re: My first Air gun experience - Commando (Help needed)

Post by kanwar76 » Mon Nov 23, 2009 4:48 pm

Thanks for the review Vijaycool,

I think you should not waste money on these local airguns apart from IHP. IHP is the only local airgun worth your money. Take back the gun to the shopkeeper and tell him about the "Automatic firing". It can be dangerous. Return this and buy an IHP if he has them

my two cents

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Re: My first Air gun experience - Commando (Help needed)

Post by tirths » Mon Nov 23, 2009 4:56 pm

looks like another copy of Diana35 :)
Automatic firing is also common in IHP. The stock looks better than IHP for sure. Do a sanity check like this. Cock the gun in front of shop keeper and then give a slap behind the stock. It will fire if the gun has some issue.
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vijaycool
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Re: My first Air gun experience - Commando (Help needed)

Post by vijaycool » Mon Nov 23, 2009 5:19 pm

Thanks Tritha.. Stock is good and Blueing is Ok. I applied little much oil towards the breech to check for the leak. No dieseling. I dont have spring compressor with me so hesitant to open the rear cap. What do you say about Rifling grooves and the calibre dia. 5.28mm is much small than 5.58mm(.22 in) . Will this affects the velocity or the accuracy?

Regards,
Vijay

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Re: My first Air gun experience - Commando (Help needed)

Post by tirths » Mon Nov 23, 2009 6:12 pm

Tight breech is common. You can resolve it by grinding using a star screw bit on drill machine. Groove is very very deep which can be a cause for many flyer and yes power loss.

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Re: My first Air gun experience - Commando (Help needed)

Post by professor » Mon Nov 23, 2009 6:34 pm

I think there is no point in wasting money on such air rifle brands. Why don't u purchase a good IHP gun insted. I am not sure the shopkeeper will replace it now .....better way ask him to replace it with any IHP model even if that is costlier than this......first thing what every new air gun buyer should remember that Indian Hume Pipe company is a bigger & reputed organization engaged in mfg of pipes, agricultural instruments & of course air rifles since many years......don't use this risky gun at all.....

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Re: My first Air gun experience - Commando (Help needed)

Post by tirths » Mon Nov 23, 2009 6:46 pm

Dear Professor,

What made you think IHP is good. Please do not go by the big company (name).

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Re: My first Air gun experience - Commando (Help needed)

Post by m24 » Mon Nov 23, 2009 7:30 pm

Literal translation of a hindi saying, Among the blind, the one-eyed is king. :)

Regards
Jeff Cooper advocated four basic rules of gun safety:
1) All guns are always loaded. Even if they are not, treat them as if they are.
2) Never let the muzzle cover anything you are not willing to destroy.
3) Keep your finger off the trigger till your sights are on the target.
4) Identify your target, and what is behind it.

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Re: My first Air gun experience - Commando (Issue resolved)

Post by vijaycool » Mon Nov 23, 2009 11:46 pm

Thank you for all your replies. I have found out the issue. The trigger rests on the wood stock, when cocked it couldnt able to engage the sear completely. Filed some part of the wood. Test fired 10 shots and its perfect. The trigger is so smooth and light :D

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Re: My first Air gun experience - Commando (Issue resolved)

Post by m24 » Tue Nov 24, 2009 12:15 pm

Congrats. You appear to be a hands-on guy. Keep that up.

Regards
Jeff Cooper advocated four basic rules of gun safety:
1) All guns are always loaded. Even if they are not, treat them as if they are.
2) Never let the muzzle cover anything you are not willing to destroy.
3) Keep your finger off the trigger till your sights are on the target.
4) Identify your target, and what is behind it.

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Re: My first Air gun experience - Commando (Issue resolved)

Post by theairgunsniper » Tue Nov 24, 2009 6:19 pm

exactly copy of uta spotrs air gun model 35 and uta ak 200

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Re: My first Air gun experience - Commando (Issue resolved)

Post by professor » Tue Nov 24, 2009 6:27 pm

Heyyyyyyyy m24 my opinion about IHP is based on my experience man. I am using IHP 25, 0.177 since 1989 & have not faced a single problem with it till date....I do have model 150, 5.5 mm but it's not with that finish....btw I would be highly obliged if u let me know any better local air gun available in the market compared to IHP...regards :o

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Re: My first Air gun experience - Commando (Issue resolved)

Post by vijaycool » Tue Nov 24, 2009 6:37 pm

Today I have made some washers from the engine oil can to compensate the breech seal depth(6mm). I purchased a square seal 15x16mm which is the only available seal close to the breech (14 x15.5mm) i think. There is still 0.5mm gap between the seal and the ID of the breech. As of now i have placed 2 plastic washers and 2 more need to be placed to get perfect seal. Test fired the gun and the power level is fantastic. Now it can break beer bottles from 25 yards. As per trith suggestion enlarged the bore with a T-30 screw driver and pellet loading is eased up a bit. Need to buy a 6mm round file for smooth finish.
All I need is better rear sight. suggest me where i can get ihp sight or it that available as spare.

Regards,
Vijay

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Re: My first Air gun experience - Commando (Issue resolved)

Post by tirths » Tue Nov 24, 2009 6:48 pm

vijaycool wrote:Today I have made some washers from the engine oil can to compensate the breech seal depth(6mm). I purchased a square seal 15x16mm which is the only available seal close to the breech (14 x15.5mm) i think. There is still 0.5mm gap between the seal and the ID of the breech. As of now i have placed 2 plastic washers and 2 more need to be placed to get perfect seal.
Great! Now you can think of buying an O ring for a better breech seal.

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Re: My first Air gun experience - Commando (Issue resolved)

Post by vijaycool » Wed Nov 25, 2009 10:09 am

I fitted the square seal with additional shims. The seal protrudes .5mm from the breech it really made a very tight seal and the power is fantastic. The happiness doesnot last long as the seal came out from the seat as I close the barrel which made a cut in the seal rendered useless :( . This happened after 30 odd shots. Just one pellet beer bottles shattered like a pile of sand :lol:
I dont have much space for target shooting somehow squeezed 7m. This is the first time i am doing target shooting and i am way off . It gave a clear picture of the gun accuracy and my ability which is really bad at the moment.

Some pics
The half cut pellet is due the striking of the pellet on the crown of the bottle
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DSCF5437.JPG
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