I’ve got an Impact X in .25 and need to know the twist rate in STX barrel for a ballistic calculator. Can anyone help me out???
Twist Rate
- Thread starter Kerbow01
- Start date
1:28 .... 25 cal for what length ? is there any difference in length ?
same question to 0.22 A liner and B liner ?
same question to 0.22 A liner and B liner ?
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Never thought to ask here.....I have a similar need to accurately enter data for my ballistics program
What is the twist rate for an FX Crown in .177?
What is the twist rate for an FX Crown in .177?
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I have ordered a barrel kit and it is in the mail. I expect this today or tomorrow and I will measure it when it arrives.
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Don’t want to hijack your thread here but I’ve been asking/researching what the twist rate of what my Kral barrel is because of a video Dubber put out about is FX barrels and how they have the correct twist rate...
anyone know what the Kral 20” or other barrel twist rate is?
Thanks
anyone know what the Kral 20” or other barrel twist rate is?
Thanks
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Pretty sure the .22 A liner is 1:19 RH ( well the one that just turned up in the mail is anyway)
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I just measured my brand new .177 barrel. The rifling twist is 1 in 19 inches. I am surprised, the .177 barrel is only 19" long. Much shorter than the .25. I didn't expect that. I believe the .25 is advertised at 60 CM (23.6"), although I have never measured it. The barrel ID as measured with certified pin gauges, is on the breech end go =.173, no go = .174 and on the muzzle end go = .173 and no go = .174. The brass breech block however is .180 and the probe is .170. So, there is no choke at all in the barrel. Again, I am surprised. Should I be surprised? Comments please. All this translates to a .003" bite on standard pellets and a .004" bite on the larger .4.52mm size.
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