GTA

Airguns by Make and Model => Evanix Airguns => Topic started by: Froggy. on January 24, 2017, 01:06:00 PM

Title: Sumatra. 22 barrel twist rate.
Post by: Froggy. on January 24, 2017, 01:06:00 PM

Measured a 24inch sumatra. 22 cal barrel and the twist rate is
1 in 24. It surprised me always thought it was 1in 18.
Maybe the reason why the rifle is still accurate with jsb's at 970fps+

Title: Re: Sumatra. 22 barrel twist rate.
Post by: Habanero69er on January 24, 2017, 06:44:06 PM

Yeah, according to the description of the Sumatra on the Pyramyd site, it is 1:18 RH twist. 

https://www.pyramydair.com/product/seneca-sumatra-2500-500cc-reservoir?m=1077 (https://www.pyramydair.com/product/seneca-sumatra-2500-500cc-reservoir?m=1077)