14 1/2 foot pounds of energy from a Crosman 2240
 

Been playing with my 2240 carbine. Its got an 18" barrel, Boss valve, Melon bolt probe and Disco heavy spring. These are some of the results I got

JSB 13.43 gr

Average of 639 fps for 12.18 FFE

Crosman 14.3 CP

Average of 629 for 12.5 FPE

H&N 14.66

Average of 624 for 12.67 FPE

JSB 15.89

Average of 606 for 12.961 FPE

JSB 18.13

Average of 578 FPS for 13.453 FPE

H&N 21.30 Cuda's

Average of 554 FPS for 14.52 FPE

Did not want to try anything heavier. Figured this 2240 is potent enough for taking squirrels from my yard.

Dave

That some great power from CO2! How many shots you get from a powerlet? What it needs now is a Powermax Hipac!

Still tuning it but getting about 12 shots before a significant drop in power. Hope to try the Hipac tomorrow.

Grumpy

So I played with the HiPac in this beast and here are some peak numbers

CP14.3 grain, 1200 PSI

693 FPS 15.25 FPE

CP14.3 grain, 1500 PSI

744 FPS 17.58 FPE

CP14.3 grain, 2000 PSI

795 FPS 20.07 FPE

Thats about as high as I cared to push this 2240 without pinning the valve.

Of course with the Boss valve shot count can be measured on a couple of fingers.

Grumpy

Here is the best shot string I have gotten with this 2240, 2000psi, H&N 21.13 gr baracuda's

1. 624 fps
2. 624
3. 634
4. 633
5. 652
6. 644
7. 644
8. 644
9. 634
10. 624
11. 603

Not a bad spread at all for a hunting carbine

Grumpy

Wow, that's a hard-hitting 2240.

Hunting is a good application for it too, then you won't mind that you're not getting too many shots per cartridge.

this is interesting as i have a hipac on my new 2400kt, i plan on installing mellon long probe bolt
and power adjuster and fill to 2000psi.
joe

You should make some nice power with that combo. Just play with the spring pressure to tweak it.

Grumpy

i have the green spring in it now should leave it or use some thing else ?
thanks
joe

I switched out the green spring for a stock disco spring.