New FX .25 SLUG liner now apparently 1:16 twist rate.

[qball]

Same here, debating between the coldshot and the less expensive Raven jack at almost half the price. I may just pull the trigger on the Ravin Jack as it is available thru Amazon and if I don't like it...


Allen

​

Let us know how the Raven jack works out for you. The coldshot supposedly has pretty accurate and repeatable adjustment and comes in MOA and Mil version. Very interested to see how the raven jack will stack up.

 

[darknes]

hello, I wanted to do a proper accuracy test today, unfortunately the weather wasn't very kind, snow showers with temperature alternately 0 or -1 Celsius and wind 20ms. I can only say that I hit the target before it fell somewhere in the snow after 5 hits, so I don't know how exactly it went

 

[Chris44]

Here is my best groups with this new barel.
Right with .25 cal left with.251 at 30 m.

And I’m not really happy with these groups.

Impact M3 .25, JSB KnockOut MKII

Weather: 21.7°C 4.6 m/s heavy intensity rain 1013hPa/mbar 29.91inHg 78%

Shot count: 21

Low: 954 FPS
Hi: 1012 FPS
Avg: 991 FPS
Spread: 58 FPS
STD Dev: 13.9 FPS

19-Jun-2024 18:51:44;954;FPS;91.8;J;
19-Jun-2024 18:52:26;976;FPS;96.1;J;
19-Jun-2024 18:52:39;972;FPS;95.3;J;
19-Jun-2024 18:52:59;976;FPS;96.1;J;
19-Jun-2024 18:53:11;986;FPS;98.1;J;
19-Jun-2024 18:53:26;981;FPS;97.1;J;
19-Jun-2024 18:53:44;987;FPS;98.2;J;
19-Jun-2024 18:54:05;983;FPS;97.5;J;
19-Jun-2024 18:54:15;982;FPS;97.3;J;
19-Jun-2024 18:54:26;991;FPS;99.0;J;
19-Jun-2024 18:54:42;990;FPS;98.9;J;
19-Jun-2024 18:55:03;1004;FPS;101.7;J;
19-Jun-2024 18:55:30;1002;FPS;101.3;J;
19-Jun-2024 18:55:48;1001;FPS;101.1;J;
19-Jun-2024 18:56:06;999;FPS;100.7;J;
19-Jun-2024 18:56:25;1012;FPS;103.3;J;
19-Jun-2024 18:56:54;1008;FPS;102.5;J;
19-Jun-2024 18:57:30;1002;FPS;101.3;J;
19-Jun-2024 18:57:52;1001;FPS;101.1;J;
19-Jun-2024 18:58:07;999;FPS;100.7;J;
19-Jun-2024 18:58:20;1001;FPS;101.1;J;

 

[darknes]

I'm not surprised that it bothers you, but jsb knockout in .25 is not very good for fx liner. here they say that if you hit the barn with them, they are quite accurate try Zan. 41 grain in .25 cal worked best

 

[Gambler]

Ive had the best groups with the lighter zan's in my heavy liner .25

And I have tried all zan weights, a few HN and the JSB mk1 and mk2.

That being said with my setup, 700mm tension barrel and hausken suppressor the 26.5gr mk2 zan shoots the best with the 28gr in second place.
But as I have read the heavier HN and zan shoots amazing with others so I may just be that I have tensiond the barrel wrong for heavier slugs or the suppressor may throw them off.

 

[Chris44]

Ok I ordered right away the Zan 41 gr, thanks for your advice.

 

[Chris44]

Judgement day: zAN 41 ge

Impact M3 .25 600 mm 1:16 STX, Zan Slug

Weather: 25.8°C 2.1 m/s clear sky 1010hPa/mbar 29.83inHg 50%

Shot count: 5

Low: 965 FPS
Hi: 972 FPS
Avg: 968 FPS
Spread: 7 FPS
STD Dev: 2.7 FPS

25-Jun-2024 21:57:41;971;FPS;116.4;J;
25-Jun-2024 21:57:54;967;FPS;115.5;J;
25-Jun-2024 21:58:17;967;FPS;115.5;J;
25-Jun-2024 21:58:37;965;FPS;115.0;J;
25-Jun-2024 21:59:07;972;FPS;116.7;J;

And I m sure I can get better results.

 

[Healthservices]

Judgement day: zAN 41 ge

Impact M3 .25 600 mm 1:16 STX, Zan Slug

Weather: 25.8°C 2.1 m/s clear sky 1010hPa/mbar 29.83inHg 50%

Shot count: 5

Low: 965 FPS
Hi: 972 FPS
Avg: 968 FPS
Spread: 7 FPS
STD Dev: 2.7 FPS

25-Jun-2024 21:57:41;971;FPS;116.4;J;
25-Jun-2024 21:57:54;967;FPS;115.5;J;
25-Jun-2024 21:58:17;967;FPS;115.5;J;
25-Jun-2024 21:58:37;965;FPS;115.0;J;
25-Jun-2024 21:59:07;972;FPS;116.7;J;

View attachment 474952

And I m sure I can get better results.

What distance is this?

Allen

 

[Chris44]

30 m

 

[Healthservices]

No sorry that's not good enough that needs to be at least 100 meters. Do what you need to make that smaller. Practice as needed. Do the 30 challenge at least until you can get above 185 score, then keep going. The higher the better. Then watch your longer distance groups shrink.

Allen