i have two impacts mk2 .22 cal
1 with power plenum installed by fx
1 came with out pp , so i ordered fx impact power plenum complete kit ( includes hammer weight + spring + valve ) and install it.
i noticed the hammer tension is still the same without pp , the fx impact mk2 with factory installed pp has much more hammer tension room .
with my impact factory installed pp i can get 970 fps using HN 25 g slugs ( hammer is not even maxed out- 130 reg )
with other mk2 pp i barely get 920 fps ( maxed out hammer - 140 till 150 reg )
i noticed a difference in hammer spacing between the two.
plz advise me if i am missing something
1 with power plenum installed by fx
1 came with out pp , so i ordered fx impact power plenum complete kit ( includes hammer weight + spring + valve ) and install it.
i noticed the hammer tension is still the same without pp , the fx impact mk2 with factory installed pp has much more hammer tension room .
with my impact factory installed pp i can get 970 fps using HN 25 g slugs ( hammer is not even maxed out- 130 reg )
with other mk2 pp i barely get 920 fps ( maxed out hammer - 140 till 150 reg )
i noticed a difference in hammer spacing between the two.
plz advise me if i am missing something