Tuning the Texan 457
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Topic: Tuning the Texan 457 (Read 402 times))
Tiroflojo
Plinker
Posts: 153
yes
Real Name: Enrique
Tuning the Texan 457
«
on:
April 19, 2021, 03:50:50 AM »
Greetings.
I have been tuning the Texan for days with a 330 grain slug, it was making three shots very close together at 40m, with the spring power setting halfway (old valve with 200 bar reservoir).
Then I set up a moderator and the magic was over: I no longer grouped. Making a night shot video with IR and switching to watching at slow speed you see the slug make a big spiral turn to the right.
Now I have the doubt if it is speeding, lack of speed or a bad moderator effect.
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Espaņa, Spain
Porschephile
Gradually climbing the power ladder to...
Shooter
Posts: 57
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Real Name: Mike
Re: Tuning the Texan 457
«
Reply #1 on:
April 19, 2021, 09:06:49 AM »
I would remove moderator and look for signs of clipping. If bullets are not striking moderator perhaps moderator is not well designed and causing variable turbulence. What moderator are you using?
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Tiroflojo
Plinker
Posts: 153
yes
Real Name: Enrique
Re: Tuning the Texan 457
«
Reply #2 on:
April 19, 2021, 11:23:33 AM »
Hellow.
It is an aluminum cone design moderator, bought second hand. I think it does not align well with the barrel. I do not think it rubs the projectile, because the groups would open more (it happened to me again). But not.
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Espaņa, Spain
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All Springer/NP/PCP Air Gun Discussion General
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Tuning the Texan 457