Accuracy again

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
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bravootome
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Fri Dec 05, 2014 10:25 am

hello,
maybe someone dig deeper into accuracy and knows more than i do. Again i got accuracy issues, large issues.
TO 7 m i put the bb in same hole every shoot, but when i shoot to 25 m the bb hit somewhere else . I set the scope there but next shoot again someplace else. I test it all day long.....few hundred shoots........ I tried another scope, i checked the barrel to be streight few times. Changed the power. THe bb enters perfectly into the barrel from the breach loading. The barrel is inside other 2 pips so it is solid. Nothing moves. BBs are umarex steel, barrel is airsoft steel..
I dont know what is wrong cuz some time ago it was shooting very well to 40 m or far.

YOu know the satisfaction to hit where you want by one shoot.
Attachments
tasco scope
tasco scope
buschnell scope
buschnell scope
Last edited by bravootome on Sat Dec 06, 2014 10:02 am, edited 1 time in total.
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mark.f
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Fri Dec 05, 2014 1:59 pm

A little more info would be helpful, in particular, the valve mechanism. Shot to shot variance in power would not only produce a difference in elevation between shots, but also in windage due to the way a BB travels down a barrel which isn't perfect and through the air.
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bravootome
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Fri Dec 05, 2014 2:40 pm

1st picture is with a tasco scope.
1nd picture is with a buschnell scope.
Both are cheap scopes........


Edit :
1. fixed inside the scope
2. shorten and recrowning the barrel
3. removing a screw used to fix the barrel on th gun. It was strangling.
leaning the barrel after each 3 shoots.

The shoot is by 28-30 m
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30 m shoot
30 m shoot
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tater slayer
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Wed Dec 10, 2014 4:10 pm

wait, you are using steel bbs in an airsoft barrel? are the bbs you're using 6mm?
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wyz2285
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Wed Dec 10, 2014 5:58 pm

I strongly suggest a rifled barrel. Brass/aluminium airsoft barrel will worn out quick if you're using steel bbs.
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bravootome
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Thu Dec 11, 2014 1:48 am

wyz2285 wrote:I strongly suggest a rifled barrel. Brass/aluminium airsoft barrel will worn out quick if you're using steel bbs.
The barrel is made out of steel. I payed 25 euro for it. It is illegal to buy rifled barrels (they aren't for sale in my country) Or even to mount by yourself (or shorten the barrel) on a gun the you own....or to exceed the 220 m/s of the projectile...
.........they dont say anything about airsoft guns ( just to be in 6 mm caliber and not to use metal projectiles )
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