URGAN .25 ..This was almost a For Sale..AD
- Thread starter mercado
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I had a similar problem. Check the crown as well. I was amazed at how a small discrepancy could absolutely destroy the accuracy. Most of the “tuning” for air guns and powder burners as well related to barrel harmonics if everything else is right. You can’t tune a poorly machined barrel into a sub minute of angle shooter but you CAN tune a good shooter into a great shooter if you can stick with the process. A flexible barrel causes issue with POI change which I’ve found a real problem with some rifles and especially air rifles
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Great job you did there! Even better it tightened up your groups substantially.
I used the same technique on my Impact several months back and it really tightened things up good although the gun already shot stellar so not much help there. Still it did stiffen the barrel assembly remarkably well so I no longer had to worry about poi shifts. I just made a bushing that was slightly longer than the space between the barrel shroud and the block. So when I tightened the shroud down it snugged up against the block.
Did it better when I got more Delrin.
https://www.airgunnation.com/topic/finished-up-on-my-impact-barrel-tension-mod/?referrer=1
I used the same technique on my Impact several months back and it really tightened things up good although the gun already shot stellar so not much help there. Still it did stiffen the barrel assembly remarkably well so I no longer had to worry about poi shifts. I just made a bushing that was slightly longer than the space between the barrel shroud and the block. So when I tightened the shroud down it snugged up against the block.
Did it better when I got more Delrin.
https://www.airgunnation.com/topic/finished-up-on-my-impact-barrel-tension-mod/?referrer=1
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Biohazard man....looks awesome like a factory part.
Bubblerboy64... if the barrels were atleast 5/8 thick been 22+ long it would have worked or the could have made the shroud to tighten against the block.that would have solved the problem..
Bubblerboy64... if the barrels were atleast 5/8 thick been 22+ long it would have worked or the could have made the shroud to tighten against the block.that would have solved the problem..
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After using the gun all day today...as awesome as it should be...I could say the first time I enjoy shooting a .25 .. so this one stays with me..
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Odd that you say the barrels are thin. I have several AG's here and the Uragan has the largest dia. barrel of the lot.
I tried the same thing as My Raptor uses a similar setup. Sadly, it had exactly the opposite impact on the Uragan. It is dead nuts accurate without the spacer being tightened against the block, But is is more solid with it. And it sprays with it there.
Each bbl. is different. It is the way it is with barrels.
Knife
I tried the same thing as My Raptor uses a similar setup. Sadly, it had exactly the opposite impact on the Uragan. It is dead nuts accurate without the spacer being tightened against the block, But is is more solid with it. And it sprays with it there.
Each bbl. is different. It is the way it is with barrels.
Knife
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After taking my .30 Uragan apart to remove the barrel for some lapping and polishing I would think that the barrel being the main support between the mid and rear blocks would be more of an issue than anything else. I've never seen a design quite like it. The mounting of the barrel with 4 lugs in the rear and 4 lugs mid makes me wonder how harmonics could be a problem. My .22 barrel seems pretty stout. It's a PITA to line it all up, but solid once right.
Like Knife said every bbl is different.
Like Knife said every bbl is different.
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Airforce barrels n cricket barrel are almos 5/8 of inch thick..uragan barrels are a bit more than 1/2 " for me that is thin compared to the other 2 .. the .30 was even worst the only time I had such a bad experience was when the barrel in the 357 rex comes loose..I cant track.the shoot because of the barrel movement..there was a uragan .30 afew days ago for sale the the guy modified the shroud looking for a way to stabilize the barrel..so that my experience with the 2 guns you could see I wait to use the second in order to give my experience with the gun I also stated tha it happens if you are shooting from a unstable place with a moderator on front..n I never had such a problem not with my crickets or taipan longs..not even when I was using the condors for pellets..I could even track the shot from my HP 308 Texan..but no from the uragan..barrel goes every were..if you take the shroud of n take the tip.of the barrel like you will play a guitar it goes boinnnnnnnnn ..try that with a cricket.. or a taipan..that's harmonic I'm talking about..anyway with my problem solved..a .22 is on my way n definitely will buy me the .30 again..
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Glad it worked out for you. I have quite a few both factory and custom AF barrels and my .25 Uragan is larger in dia/ than any of them. Odd as I said. The AF barrels are just under 13mm, where the Uragan is over 14mm. Perhaps they changed the dimensions?
A shame in m;y case as I have a lot of barrels I would love to test in the Uragan, but all are undersized unless I cf wrap them.
With such a short section of barrel extending in front of the forward block, it is hard to understand how you are having such a limber barrel. Compared to say, an impact, it is a crowbar. Be that as it may, put a cf tube between the air stripper base and the rear of the shroud. It will be hell bent for stout.
Ctshooter, next time, use the cheek piece as a spacer to set the distance between the two blocks. Works well. ;<)
Knife
A shame in m;y case as I have a lot of barrels I would love to test in the Uragan, but all are undersized unless I cf wrap them.
With such a short section of barrel extending in front of the forward block, it is hard to understand how you are having such a limber barrel. Compared to say, an impact, it is a crowbar. Be that as it may, put a cf tube between the air stripper base and the rear of the shroud. It will be hell bent for stout.
Ctshooter, next time, use the cheek piece as a spacer to set the distance between the two blocks. Works well. ;<)
Knife
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First is a factory..24" .22 airforce barrel n yes airforce barrels come thinner in the ss models talon p - talon ss - condor ss.. the one in the pic almost a rebar... the second ir a factory cricket 22" carbine barrel just a hair thinner...let see what the fabulous uragan has for barrel when I go home...will send you a pic...so the first is 5/8 -- the cricket is just 1/32 smaller..
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At 14.12 is even thinner than tha tj below..the uragan barrel goes out the block 10" the condor 11" n at 170.+FP I could still track my shots 200+ y
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Easy Fernando, easy, same almost happened to me with an Evanix Cloud, a bit of ingenuity and old fashioned mechanics and PRESTO, solved! Or.............. on the way of being solved!
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