How much better has the shot count and valving gotten from the Impact MK2 to the FX Panthera? Worth it?

[Maizen]

How much better has the shot count and valving gotten from the Impact MK2 to the FX Panthera? Is it worth the upgrade? For example if I slap on a 580cc bottle on both my MK2 and a Panthera…how much more efficient is the Panthera? Operating reg pressure? Shot count? Is it worth the upgrade?

Aside from the obvious larger plenum on the Panthera, is there more to it than just a larger plenum? I mean theoretically speaking, if I slapped on the same plenum system onto my MK2…how much more efficient would the Panthera be?

I’d like to have quantitative data if possible. Any FX reps…I’d like for you to chime in if possible. Thank you all.

 

[bigHUN]

I have the MK2 25x700,
earlier this year swapped the plenum from 500ish to 720c (with a new power block), and I can confirm that the Reg must be set at least 150 bar for tune to work with short dwell time, vs 130b what I had earlier.
Also must say I don't care for the air efficiency I tether for BR, but the Dwell timing is my goal.

 

[Maizen]

I have the MK2 25x700,
earlier this year swapped the plenum from 500ish to 720c (with a new power block), and I can confirm that the Reg must be set at least 150 bar for tune to work with short dwell time, vs 130b what I had earlier.
Also must say I don't care for the air efficiency I tether for BR, but the Dwell timing is my goal.

So how would this compare to a Panthera though? Any panthera owners want to chime in?

 

[Vana2]

I have both the Impact MK2 and the Panthera in .22/700mm.

I haven't done a side by side efficiency comparison between the two but just wanted to comment that I wouldn't consider a Panthera to be an "upgrade" over the Impact - they are two very different airguns.

When someone says "upgrade" I think "sell and replace" - I like my Impact for its versitility and would not consider selling it.

I like my Panthera (I've added a 700cc front bottle) as a dedicated bench rifle and if that's your intrest then I'd recommend one, it's a great shooter! If you are concerned about efficiency I'm presuming that you would be wanting a 700mm barrel. Just wanted to say that the Panthera, by its weight and length, is not the type of airgun I'd want to carry out in the field.

Cheers!