FX Superior liner heavy .25

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I hope to be right in the measure ..... I put photos

46cm a Inch = I believe is 1:18,11

1592569467_9062984885eecae7b7163c3.28744683.jpg

 
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Then we are on the right track.
I would like FX to confirm that this is the new Superior Heavy liner and the twist rate is correct ..... now we need the bird (s) to fly well in this liner ...... for the time being on me (I may have to fine-tune much more and do many tests with the Nielsen)
FX Impact MK II Power plenum .25 liner 600mm (Works well)
FX Hybrid at 1006fps
King Heavy MK II at 928fps
 
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Then we are on the right track.
I would like FX to confirm that this is the new Superior Heavy liner and the twist rate is correct ..... now we need the bird (s) to fly well in this liner ...... for the time being on me (I may have to fine-tune much more and do many tests with the Nielsen)
FX Impact MK II Power plenum .25 liner 600mm (Works well)
FX Hybrid at 1006fps
King Heavy MK II at 928fps
Click to expand...

with my old 600 slug liner i had perfect results with the jsb mk2 @ 905 fps 1/2 inch at 100 meters NO wind. switched to nsa because the jsb dont like wind.

so far the nsa 26.8 shoot better than the 29.5 and i will soon test the 33.5gr @ 920fps
 
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with my old 600 slug liner i had perfect results with the jsb mk2 @ 905 fps 1/2 inch at 100 meters NO wind. switched to nsa because the jsb dont like wind.

so far the nsa 26.8 shoot better than the 29.5 and i will soon test the 33.5gr @ 920fps



indeed the King Heavy went very well at 905-910fps but to help with the wind it went up to 925-928fps and improved the grouping ....... it is understood that in theory this liner is not for pellets or for the Hybrid .. ... here the theory is broken ..... with the Nielsen I thought it would work (29.5gr) but no, it affected the air as if it were a King heavy. The 33.5gr I need to do more tests.
I hope that the colleagues who have this liner in both 700mm and 600mm will put their tests.
What if I have noticed and already commented before ..... the more shots the liner behaves better, the smaller irregularities or micro shrapnel are polished.
 
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I’m glad I found this thread as I just picked up the 25 superior heavy . My biggest concern so far is that with the heavy I’m seeing about 40 FPS lower speed than with the slugliner A, with the same power settings. 36 grain NSA went from 940 to 900 FPS.
Click to expand...

I agree, this liner is very strangled (Choke) I have pushed a slug through this liner and I have noticed a lot of hardness ....... I had to press hard enough to remove it from the other end of the liner. You can see the very pronounced marks 😱


1595120912_14280278175f139d100e3144.95668644.jpg

 
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I’m glad I found this thread as I just picked up the 25 superior heavy . My biggest concern so far is that with the heavy I’m seeing about 40 FPS lower speed than with the slugliner A, with the same power settings. 36 grain NSA went from 940 to 900 FPS.
Click to expand...

I agree, this liner is very strangled (Choke) I have pushed a slug through this liner and I have noticed a lot of hardness ....... I had to press hard enough to remove it from the other end of the liner. You can see the very pronounced marks 



Same same here .this is the NSA 33.5 grain slug

1595171086_17269454855f14610ed1a632.66854368.jpg
Click to expand...
 
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