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Just an ide to storage your silencer and endcap on your panthera. Or forget it at home😄

https://www.airgunnation.com/topic/fx-crown-plenum/

I am using 216 Thats the only ones i can purchase right now Are the 217 out? Ja have tried different velocity upp to 950 but settle with 885. Haven't tried the pellet liner with higher speeds🤔 Like to shoot with this setup for now I am getting 112 shots on the reg with 480cc bottle👍 But...

RabbitBlaster I took the the 700mm barrel in 25 cal from the Impact and put it on the crown Now iam getting 300ms (985fps)with the mk2 But it is to long🙂 Like it more with 600mm

I have made them both brass and steel. Hammer weight is 8 gram It is easier to get more power out of a 30 cal There i only added the plenum and no extra. This is the first 25 cal i made. But with the plenum added you get more power out of it in low reg pressure.

This one is made of steel.

Same reg pressure before 160bar all standard I was getting 268 ms (879fps) with the mk 2 So 24 ms (79fps)more.

Just mounted a powerplenum on a Crown in 25 cal 600mm And a hammer mod Results is at 160 bar reg with the Jsb mk2 is pellet speed 292 ms (958fps) and with the kings 323ms (1060fps)

I tried with them both with no extra gain If anything i was loosing power It was with the 30 cal So i only have the pp on the gun now,because it is more ergonomic. There something turbulent happining in the plenum It is better that all the plenum air is in one cylinder.

Yeah and tey are not so expensive like the hybrids.

I really like these Jsb ko 22 slugs👍 Shooting them with my Fx impact PP 600mm slugliner A Reg at 110 bar Pw at 3 Best for my setup is 270ms (885fps) https://youtu.be/ZuRHqah3Oks

Nice Keep us updated🙂

Cool Sorry dont have giving any mesurment Havent had time Do you have a bigger valveseat?

If only one gun. The Fx impact 👍 Crown very nice but not a 30 cal rifle in my opinion

About 7mm. Ja i did take more material out of this time.

Made me a bigger plenum now Now i have taken a little bit off the trigger,and i gain 1,5 ml. Not a plenum you notice so well🙂 Havent tried any shooting yet with the new upgrade. Not true i did 2 shot quikly with 22 hybrids 100bar 245 Then the wife called 😏

Hi thank you Libellule1. This was my first prototype and just made it of brass easier to work with. Going to try to make it out of stainless steel or titanium and make the walls thinner to get more volume. The brass plenum is giving me 3 ml extra

I have made (power plenum) for my 30 cal crown Before i did anything it was shooting 265 ms at 160 bar reg and pw on 5 Now when i added the plenum i get 275ms at 140 bar reg with the 44grains and pw at max. Haven't tried more hammer weight yet. And with the 22 jsb knock out same reg pressure...