Strelok Pro & Twist Rates

[Kyler]

I had been using Strelok+ and decided to upgrade to Strelok Pro. The Pro version asks for barrel twist rate for each gun. I've Googled and not found anything for either my Hatsan 87 or the Wildcat Compact. 

Does anyone else use the Pro version? What do you do for twist rates?

 

[Trailryder42]

I use Pro. Had to do some searching around to find the twist rate of my Pro Sport. Seems barrel twist rate is just not a spec that's often stated.

You could probably figure it out tho. With the cleaning rod I have, the handle spins on the rod. So as I push a patch thru, the rod spins with the twist of the barrel as I hold the handle. You could figure twist rate that way.

 

[Centercut]

For the standard FX ST barrel, I've heard an "effective" twist rate anywhere between 1:30 and 1:50. I use 30 for my FX Bobcat MK2 in .30 cal. Actual twist rate is 1:16, but only in the final few inches, the rest is obviously smooth... 

 

[mubhaur]

ST barrel effective twist rate is around 1:60 or a bit more

 

[Kyler]

"Trailryder42"With the cleaning rod I have, the handle spins on the rod. So as I push a patch thru, the rod spins with the twist of the barrel as I hold the handle. You could figure twist rate that way.

that is a great idea! thanks for the suggestion

 

[Alejandroo]

You can also try to send some emails to support service ask the manufacturer, maybe they answer.
Good luck

 

[Hanebuth96]

In a video discussing the wildcat compact Jon from fx stated the 25 caliber twist rate is 1:30.

 

[SvilenP]

Twist rate for Hatsan 125 TH Vortex .22?

 

[Kyler]

"Hanebuth96"In a video discussing the wildcat compact Jon from fx stated the 25 caliber twist rate is 1:30.

hanks - that probably is in cm too which would make it 1:12

 

[Centercut]

I'm pretty sure that the "effective" twist rate is 1:30 as stated by FX... And for this they do use inches. The "actual" twist rate is 1:16 from what I've read.

 

[Kyler]

this is what I got from my email to FX

"The twist rate is 1:21 in the .177 crown
1:28 in the .25 Wildcat compact.

Best regards Johan"

 

[RomeoAlfa]

The twist rate in the ballistic calculators is usually to account for spin drift and most Airguns don’t shoot far enough to be affected by that. I would just leave it blank.