Tuning Fx impact mk2 shot count

[Travis224]

Got a very nice Impact MK2 PP (700mm) from a member here to go with my Maverick VP (600mm) I'm wanting to dial it in to nearly the same and use slugs. Currently I have a good stock of H&N 25 grn slugs and also have added a 580cc bottle. Right now I'm running the slugs at 925fps. Those in the know, if dialed in properly, what should my approximate shot count be? I feel like I have it out of tune slightly. Right now my reg is at 100bar. And further, what would be a good guess on setting this up for optimal shot count?



Thank

 

[Guard9208]

What shot count are you getting

 

[dannya1a]

I get 3 mags with my .22 cal with the 480cc bottle. reg set at 127 bar.
I was getting 3 mags with .25 cal as well.
with the .30 cal I was only getting 2 mags on the 480cc bottle.

 

[Revoman]

Not sure if you are talking about a 22 or 25 caliber?
My M3 22 is set to shoot the 25.4gr pellets at 925FPS with the second reg set at 110. I get 90-95 shots depending on the how hot the weather is.
mike

 

[hawkeye69]

My 25 cal M3 reg is set to 90 bar and shooting 925 fps with 25.39 gr. JSB. With the 580cc tank and 700mm barrel, I am getting over 150 shots per fill.

 

[broekzwans]

If you want to be sure what your maximum shotcount can be you'll need to do some measurements. But indeed a rule of thumb that I found is the reg pressure around 20% higher than the minimum pressure needed to achieve the speed